Finding the Fourth Proportional to 2,440.34, 3,661.01 and 979.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,440.34 : 3,661.01 = 979.61 : x
2. Step 2: Convert to fraction form
   2,440.34/3,661.01 = 979.61/x
3. Step 3: Cross multiply
   2,440.34x = 3,661.01 × 979.61
4. Step 4: Simplify right side
   2,440.34x = 3,586,346.15
5. Step 5: Solve for x
   x = 3,586,346.15/2,440.34
6. Step 6: Final answer
   x = 1,469.61