Finding the Fourth Proportional to 3,150.72, 4,726.32 and 959.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,150.72 : 4,726.32 = 959.61 : x
2. Step 2: Convert to fraction form
   3,150.72/4,726.32 = 959.61/x
3. Step 3: Cross multiply
   3,150.72x = 4,726.32 × 959.61
4. Step 4: Simplify right side
   3,150.72x = 4,535,423.94
5. Step 5: Solve for x
   x = 4,535,423.94/3,150.72
6. Step 6: Final answer
   x = 1,439.49