Finding the Fourth Proportional to 2,650.30, 3,975.49 and 702.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.30 : 3,975.49 = 702.55 : x
2. Step 2: Convert to fraction form
   2,650.30/3,975.49 = 702.55/x
3. Step 3: Cross multiply
   2,650.30x = 3,975.49 × 702.55
4. Step 4: Simplify right side
   2,650.30x = 2,792,980.50
5. Step 5: Solve for x
   x = 2,792,980.50/2,650.30
6. Step 6: Final answer
   x = 1,053.84