Finding the Fourth Proportional to 1,095.52, 1,510.72 and 702.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.52 : 1,510.72 = 702.88 : x
2. Step 2: Convert to fraction form
   1,095.52/1,510.72 = 702.88/x
3. Step 3: Cross multiply
   1,095.52x = 1,510.72 × 702.88
4. Step 4: Simplify right side
   1,095.52x = 1,061,854.87
5. Step 5: Solve for x
   x = 1,061,854.87/1,095.52
6. Step 6: Final answer
   x = 969.27