Finding the Fourth Proportional to 1,397.30, 2,094.42 and 702.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.30 : 2,094.42 = 702.86 : x
2. Step 2: Convert to fraction form
   1,397.30/2,094.42 = 702.86/x
3. Step 3: Cross multiply
   1,397.30x = 2,094.42 × 702.86
4. Step 4: Simplify right side
   1,397.30x = 1,472,084.04
5. Step 5: Solve for x
   x = 1,472,084.04/1,397.30
6. Step 6: Final answer
   x = 1,053.52