Finding the Fourth Proportional to 2,441.20, 3,661.71 and 979.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,441.20 : 3,661.71 = 979.96 : x
2. Step 2: Convert to fraction form
   2,441.20/3,661.71 = 979.96/x
3. Step 3: Cross multiply
   2,441.20x = 3,661.71 × 979.96
4. Step 4: Simplify right side
   2,441.20x = 3,588,329.33
5. Step 5: Solve for x
   x = 3,588,329.33/2,441.20
6. Step 6: Final answer
   x = 1,469.90