Finding the Fourth Proportional to 1,016,505.48, 1,402,796.27 and 557,643.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016,505.48 : 1,402,796.27 = 557,643.48 : x
2. Step 2: Convert to fraction form
   1,016,505.48/1,402,796.27 = 557,643.48/x
3. Step 3: Cross multiply
   1,016,505.48x = 1,402,796.27 × 557,643.48
4. Step 4: Simplify right side
   1,016,505.48x = 782,260,193,733.82
5. Step 5: Solve for x
   x = 782,260,193,733.82/1,016,505.48
6. Step 6: Final answer
   x = 769,558.27