Finding the Fourth Proportional to 2,461.20, 3,691.56 and 980.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,461.20 : 3,691.56 = 980.52 : x
2. Step 2: Convert to fraction form
   2,461.20/3,691.56 = 980.52/x
3. Step 3: Cross multiply
   2,461.20x = 3,691.56 × 980.52
4. Step 4: Simplify right side
   2,461.20x = 3,619,648.41
5. Step 5: Solve for x
   x = 3,619,648.41/2,461.20
6. Step 6: Final answer
   x = 1,470.68