So whe have

that is paid to the boss.
The boss won 2,176.10 this month.

So our equation would end as...

We solve what can be solved...
0.47=\frac{2,176}{x}
Then we leave our unknown value alone...
0.47x=2,176
x=\frac{2,176}{0.47}
Last we solve...
x= 4,629.79
x≈4,630
So the answer is A.