Finding the Fourth Proportional to 1,100.45, 1,517.79 and 702.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.45 : 1,517.79 = 702.24 : x
2. Step 2: Convert to fraction form
   1,100.45/1,517.79 = 702.24/x
3. Step 3: Cross multiply
   1,100.45x = 1,517.79 × 702.24
4. Step 4: Simplify right side
   1,100.45x = 1,065,844.52
5. Step 5: Solve for x
   x = 1,065,844.52/1,100.45
6. Step 6: Final answer
   x = 968.55