Finding the Fourth Proportional to 914,796.50, 1,262,419.17 and 557,100.50

Step by Step Solution

1. Step 1: Write the proportion equation
   914,796.50 : 1,262,419.17 = 557,100.50 : x
2. Step 2: Convert to fraction form
   914,796.50/1,262,419.17 = 557,100.50/x
3. Step 3: Cross multiply
   914,796.50x = 1,262,419.17 × 557,100.50
4. Step 4: Simplify right side
   914,796.50x = 703,294,350,816.59
5. Step 5: Solve for x
   x = 703,294,350,816.59/914,796.50
6. Step 6: Final answer
   x = 768,798.69