Number of yes votes is 5299
Solution:
Given that, ratio of yes votes to no votes was 7 to 4
Total votes = 8327
yes votes : no votes = 7 : 4

Let the number of yes votes casted be "7a"
Let the number of no votes casted be "4a"
Given that total votes is 8327
number of yes votes + number of no votes = 8327
7a + 4a = 8327
11a = 8327

Thus the number of yes votes = 7a = 7(757) = 5299
number of no votes = 4a = 4(757) = 3028