Finding the Fourth Proportional to 1,053,834.78, 1,580,753.31 and 493,262.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053,834.78 : 1,580,753.31 = 493,262.94 : x
2. Step 2: Convert to fraction form
   1,053,834.78/1,580,753.31 = 493,262.94/x
3. Step 3: Cross multiply
   1,053,834.78x = 1,580,753.31 × 493,262.94
4. Step 4: Simplify right side
   1,053,834.78x = 779,727,025,105.33
5. Step 5: Solve for x
   x = 779,727,025,105.33/1,053,834.78
6. Step 6: Final answer
   x = 739,894.94