Finding the Fourth Proportional to 2,626.10, 3,939.17 and 961.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,626.10 : 3,939.17 = 961.42 : x
2. Step 2: Convert to fraction form
   2,626.10/3,939.17 = 961.42/x
3. Step 3: Cross multiply
   2,626.10x = 3,939.17 × 961.42
4. Step 4: Simplify right side
   2,626.10x = 3,787,193.61
5. Step 5: Solve for x
   x = 3,787,193.61/2,626.10
6. Step 6: Final answer
   x = 1,442.14