Finding the Fourth Proportional to 2,441.72, 3,661.55 and 960.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,441.72 : 3,661.55 = 960.71 : x
2. Step 2: Convert to fraction form
   2,441.72/3,661.55 = 960.71/x
3. Step 3: Cross multiply
   2,441.72x = 3,661.55 × 960.71
4. Step 4: Simplify right side
   2,441.72x = 3,517,694.19
5. Step 5: Solve for x
   x = 3,517,694.19/2,441.72
6. Step 6: Final answer
   x = 1,440.66