Finding the Fourth Proportional to 763,123.86, 1,053,058.22 and 423,565.38

Step by Step Solution

1. Step 1: Write the proportion equation
   763,123.86 : 1,053,058.22 = 423,565.38 : x
2. Step 2: Convert to fraction form
   763,123.86/1,053,058.22 = 423,565.38/x
3. Step 3: Cross multiply
   763,123.86x = 1,053,058.22 × 423,565.38
4. Step 4: Simplify right side
   763,123.86x = 446,039,002,998.60
5. Step 5: Solve for x
   x = 446,039,002,998.60/763,123.86
6. Step 6: Final answer
   x = 584,490.97