Finding the Fourth Proportional to 2,550.79, 3,826.20 and 702.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.79 : 3,826.20 = 702.10 : x
2. Step 2: Convert to fraction form
   2,550.79/3,826.20 = 702.10/x
3. Step 3: Cross multiply
   2,550.79x = 3,826.20 × 702.10
4. Step 4: Simplify right side
   2,550.79x = 2,686,352.38
5. Step 5: Solve for x
   x = 2,686,352.38/2,550.79
6. Step 6: Final answer
   x = 1,053.15