Finding the Fourth Proportional to 3,720.54, 5,581.86 and 3,025.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,720.54 : 5,581.86 = 3,025.50 : x
2. Step 2: Convert to fraction form
   3,720.54/5,581.86 = 3,025.50/x
3. Step 3: Cross multiply
   3,720.54x = 5,581.86 × 3,025.50
4. Step 4: Simplify right side
   3,720.54x = 16,887,917.43
5. Step 5: Solve for x
   x = 16,887,917.43/3,720.54
6. Step 6: Final answer
   x = 4,539.10