Finding the Fourth Proportional to 651,120, 981,116.72 and 535,384

Step by Step Solution

1. Step 1: Write the proportion equation
   651,120 : 981,116.72 = 535,384 : x
2. Step 2: Convert to fraction form
   651,120/981,116.72 = 535,384/x
3. Step 3: Cross multiply
   651,120x = 981,116.72 × 535,384
4. Step 4: Simplify right side
   651,120x = 525,274,194,020.48
5. Step 5: Solve for x
   x = 525,274,194,020.48/651,120
6. Step 6: Final answer
   x = 806,724.10