Finding the Fourth Proportional to 820,151.18, 1,131,841.43 and 457,606.72

Step by Step Solution

1. Step 1: Write the proportion equation
   820,151.18 : 1,131,841.43 = 457,606.72 : x
2. Step 2: Convert to fraction form
   820,151.18/1,131,841.43 = 457,606.72/x
3. Step 3: Cross multiply
   820,151.18x = 1,131,841.43 × 457,606.72
4. Step 4: Simplify right side
   820,151.18x = 517,938,244,342.41
5. Step 5: Solve for x
   x = 517,938,244,342.41/820,151.18
6. Step 6: Final answer
   x = 631,515.58