Finding the Fourth Proportional to 1,144.28, 1,579.26 and 702.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.28 : 1,579.26 = 702.10 : x
2. Step 2: Convert to fraction form
   1,144.28/1,579.26 = 702.10/x
3. Step 3: Cross multiply
   1,144.28x = 1,579.26 × 702.10
4. Step 4: Simplify right side
   1,144.28x = 1,108,798.45
5. Step 5: Solve for x
   x = 1,108,798.45/1,144.28
6. Step 6: Final answer
   x = 968.99