Finding the Fourth Proportional to 1,627.17, 2,440.89 and 702.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,627.17 : 2,440.89 = 702.50 : x
2. Step 2: Convert to fraction form
   1,627.17/2,440.89 = 702.50/x
3. Step 3: Cross multiply
   1,627.17x = 2,440.89 × 702.50
4. Step 4: Simplify right side
   1,627.17x = 1,714,713.02
5. Step 5: Solve for x
   x = 1,714,713.02/1,627.17
6. Step 6: Final answer
   x = 1,053.80