Finding the Fourth Proportional to 3,901.30, 5,372.85 and 3,651.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,901.30 : 5,372.85 = 3,651.15 : x
2. Step 2: Convert to fraction form
   3,901.30/5,372.85 = 3,651.15/x
3. Step 3: Cross multiply
   3,901.30x = 5,372.85 × 3,651.15
4. Step 4: Simplify right side
   3,901.30x = 19,617,081.28
5. Step 5: Solve for x
   x = 19,617,081.28/3,901.30
6. Step 6: Final answer
   x = 5,028.34