Finding the Fourth Proportional to 800,796.81, 1,105,024.37 and 542,147.61

Step by Step Solution

1. Step 1: Write the proportion equation
   800,796.81 : 1,105,024.37 = 542,147.61 : x
2. Step 2: Convert to fraction form
   800,796.81/1,105,024.37 = 542,147.61/x
3. Step 3: Cross multiply
   800,796.81x = 1,105,024.37 × 542,147.61
4. Step 4: Simplify right side
   800,796.81x = 599,086,318,476.52
5. Step 5: Solve for x
   x = 599,086,318,476.52/800,796.81
6. Step 6: Final answer
   x = 748,112.77