Finding the Fourth Proportional to 1,057.38, 1,459.25 and 702.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,057.38 : 1,459.25 = 702.69 : x
2. Step 2: Convert to fraction form
   1,057.38/1,459.25 = 702.69/x
3. Step 3: Cross multiply
   1,057.38x = 1,459.25 × 702.69
4. Step 4: Simplify right side
   1,057.38x = 1,025,400.38
5. Step 5: Solve for x
   x = 1,025,400.38/1,057.38
6. Step 6: Final answer
   x = 969.76