Finding the Fourth Proportional to 3,580.78, 4,939.56 and 2,088.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,580.78 : 4,939.56 = 2,088.15 : x
2. Step 2: Convert to fraction form
   3,580.78/4,939.56 = 2,088.15/x
3. Step 3: Cross multiply
   3,580.78x = 4,939.56 × 2,088.15
4. Step 4: Simplify right side
   3,580.78x = 10,314,550.04
5. Step 5: Solve for x
   x = 10,314,550.04/3,580.78
6. Step 6: Final answer
   x = 2,880.53