Finding the Fourth Proportional to 1,144.34, 1,579.98 and 702.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.34 : 1,579.98 = 702.74 : x
2. Step 2: Convert to fraction form
   1,144.34/1,579.98 = 702.74/x
3. Step 3: Cross multiply
   1,144.34x = 1,579.98 × 702.74
4. Step 4: Simplify right side
   1,144.34x = 1,110,315.15
5. Step 5: Solve for x
   x = 1,110,315.15/1,144.34
6. Step 6: Final answer
   x = 970.27