Hi

please recheck the answer , I have modify this answer . Because it is not giving the option of a another answer . 

If you were send the configuration of R1 or R2 that how you set the tag value for routes , it will be more helpful to solve the issue . But i will try to explain what will be the issue in this configuration . 

According to me , you are matching tag 1111 in route-map on R3 is wrong . On the basis of task , when you configure tag value 1.1.1.1 for R1 routes , the router will set the tag is 16843009 . This is because , by default on cisco router the tag notation is decimal value . so first of all , you have to change the tag notation on all routers in topology . After that you can match tag value in route-map . you can also run a command and check tag for R1 routes on R3 which is  show ip eigrp topology . By default , you will see the tag value is 16843009 for R1 routes . so you can change tag notation with following command ---

Router(config)#route-tag notation dotted-decimal 

You have to change the tag notation with the command which was i had written in last time . The command is as follows ----

router(config)#route-tag notation dotted-decimal 

After that command you are able to assign tag value as given in task .

Actually the problem in the route-map is that you was not defined DENY action  anywhere in route-map . so how can R4 filter the route of R1 . You have to define the DENY action first and after that permit action with higher sequence number . 

Hope it will helpful for you .