Finding the Fourth Proportional to 1,280,134.37, 1,766,639.10 and 736,270.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,280,134.37 : 1,766,639.10 = 736,270.31 : x
2. Step 2: Convert to fraction form
   1,280,134.37/1,766,639.10 = 736,270.31/x
3. Step 3: Cross multiply
   1,280,134.37x = 1,766,639.10 × 736,270.31
4. Step 4: Simplify right side
   1,280,134.37x = 1,300,723,905,300.57
5. Step 5: Solve for x
   x = 1,300,723,905,300.57/1,280,134.37
6. Step 6: Final answer
   x = 1,016,083.89