The 3 classes raised 1109.81.
In order to find this we need to start with information we know.
Moore's class: 249
Now we know Aguilar's class is Moore's class + 396.62
Moore + 396.62
249 + 396.62 = 645.62
And we know that Barry's class is Aguilar's class - 430.43
Aguilar - 430.43
645.62 - 430.43 = 215.19
Now we can add all 3 numbers together to get the final answer.
249 + 645.62 + 215.19 = 1109.81