Finding the Fourth Proportional to 840,910.50, 1,261,855.31 and 354,562.15

Step by Step Solution

1. Step 1: Write the proportion equation
   840,910.50 : 1,261,855.31 = 354,562.15 : x
2. Step 2: Convert to fraction form
   840,910.50/1,261,855.31 = 354,562.15/x
3. Step 3: Cross multiply
   840,910.50x = 1,261,855.31 × 354,562.15
4. Step 4: Simplify right side
   840,910.50x = 447,406,123,620.43
5. Step 5: Solve for x
   x = 447,406,123,620.43/840,910.50
6. Step 6: Final answer
   x = 532,049.63