Formula That Will Sum Hours In A Table Based On Name Of Resource

I want to write a formula that will sum the hours in a table based on the name of a resource, a task name, and the month it was entered. So my table looks something like this:

Name
Task
Month
Hours

Person 1
Meetings
201201
2

Person 2
Misc
201202
1.5

There are additional columns, and it has over 80,000 rows...

For example, I thought that the formula to sum the hours for Person 1 if the task is meetings and the month is january would be:

SUMPRODUCT((A1:AX="Person 1")*(B1:BX="Meetings)*(C1:CX=201201),D1:DX)

I also tried SUMPRODUCT(--(A1:AX="Person 1"),--(B1:BX="Meetings),--(C1:CX=201201),D1:DX)