Finding the Fourth Proportional to 2,440.41, 3,662.70 and 980.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,440.41 : 3,662.70 = 980.61 : x
2. Step 2: Convert to fraction form
   2,440.41/3,662.70 = 980.61/x
3. Step 3: Cross multiply
   2,440.41x = 3,662.70 × 980.61
4. Step 4: Simplify right side
   2,440.41x = 3,591,680.25
5. Step 5: Solve for x
   x = 3,591,680.25/2,440.41
6. Step 6: Final answer
   x = 1,471.75