Finding the Fourth Proportional to 2,601.57, 3,904.10 and 959.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.57 : 3,904.10 = 959.43 : x
2. Step 2: Convert to fraction form
   2,601.57/3,904.10 = 959.43/x
3. Step 3: Cross multiply
   2,601.57x = 3,904.10 × 959.43
4. Step 4: Simplify right side
   2,601.57x = 3,745,693.54
5. Step 5: Solve for x
   x = 3,745,693.54/2,601.57
6. Step 6: Final answer
   x = 1,439.78