Finding the Fourth Proportional to 814,144.96, 1,123,340.16 and 469,907.56

Step by Step Solution

1. Step 1: Write the proportion equation
   814,144.96 : 1,123,340.16 = 469,907.56 : x
2. Step 2: Convert to fraction form
   814,144.96/1,123,340.16 = 469,907.56/x
3. Step 3: Cross multiply
   814,144.96x = 1,123,340.16 × 469,907.56
4. Step 4: Simplify right side
   814,144.96x = 527,866,033,635.61
5. Step 5: Solve for x
   x = 527,866,033,635.61/814,144.96
6. Step 6: Final answer
   x = 648,368.61