Finding the Fourth Proportional to 925,499.60, 1,388,108.59 and 356,797.72

Step by Step Solution

1. Step 1: Write the proportion equation
   925,499.60 : 1,388,108.59 = 356,797.72 : x
2. Step 2: Convert to fraction form
   925,499.60/1,388,108.59 = 356,797.72/x
3. Step 3: Cross multiply
   925,499.60x = 1,388,108.59 × 356,797.72
4. Step 4: Simplify right side
   925,499.60x = 495,273,975,662.15
5. Step 5: Solve for x
   x = 495,273,975,662.15/925,499.60
6. Step 6: Final answer
   x = 535,142.29