Finding the Fourth Proportional to 929,100.70, 1,280,801.86 and 656,687.98

Step by Step Solution

1. Step 1: Write the proportion equation
   929,100.70 : 1,280,801.86 = 656,687.98 : x
2. Step 2: Convert to fraction form
   929,100.70/1,280,801.86 = 656,687.98/x
3. Step 3: Cross multiply
   929,100.70x = 1,280,801.86 × 656,687.98
4. Step 4: Simplify right side
   929,100.70x = 841,087,186,223.64
5. Step 5: Solve for x
   x = 841,087,186,223.64/929,100.70
6. Step 6: Final answer
   x = 905,270.21