Finding the Fourth Proportional to 2,440.86, 3,660.69 and 960.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,440.86 : 3,660.69 = 960.06 : x
2. Step 2: Convert to fraction form
   2,440.86/3,660.69 = 960.06/x
3. Step 3: Cross multiply
   2,440.86x = 3,660.69 × 960.06
4. Step 4: Simplify right side
   2,440.86x = 3,514,482.04
5. Step 5: Solve for x
   x = 3,514,482.04/2,440.86
6. Step 6: Final answer
   x = 1,439.85