Finding the Fourth Proportional to 492,097.30, 737,109.15 and 398,785.30

Step by Step Solution

1. Step 1: Write the proportion equation
   492,097.30 : 737,109.15 = 398,785.30 : x
2. Step 2: Convert to fraction form
   492,097.30/737,109.15 = 398,785.30/x
3. Step 3: Cross multiply
   492,097.30x = 737,109.15 × 398,785.30
4. Step 4: Simplify right side
   492,097.30x = 293,948,293,515.50
5. Step 5: Solve for x
   x = 293,948,293,515.50/492,097.30
6. Step 6: Final answer
   x = 597,337.75