Finding the Fourth Proportional to 2,441.32, 3,662.78 and 979.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,441.32 : 3,662.78 = 979.72 : x
2. Step 2: Convert to fraction form
   2,441.32/3,662.78 = 979.72/x
3. Step 3: Cross multiply
   2,441.32x = 3,662.78 × 979.72
4. Step 4: Simplify right side
   2,441.32x = 3,588,498.82
5. Step 5: Solve for x
   x = 3,588,498.82/2,441.32
6. Step 6: Final answer
   x = 1,469.90