Finding the Fourth Proportional to 2,702.83, 4,055.51 and 2,659.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,702.83 : 4,055.51 = 2,659.15 : x
2. Step 2: Convert to fraction form
   2,702.83/4,055.51 = 2,659.15/x
3. Step 3: Cross multiply
   2,702.83x = 4,055.51 × 2,659.15
4. Step 4: Simplify right side
   2,702.83x = 10,784,196.12
5. Step 5: Solve for x
   x = 10,784,196.12/2,702.83
6. Step 6: Final answer
   x = 3,989.96