Finding the Fourth Proportional to 2,650.59, 3,976.20 and 702.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.59 : 3,976.20 = 702.81 : x
2. Step 2: Convert to fraction form
   2,650.59/3,976.20 = 702.81/x
3. Step 3: Cross multiply
   2,650.59x = 3,976.20 × 702.81
4. Step 4: Simplify right side
   2,650.59x = 2,794,513.12
5. Step 5: Solve for x
   x = 2,794,513.12/2,650.59
6. Step 6: Final answer
   x = 1,054.30