Finding the Fourth Proportional to 3,061.47, 4,589.70 and 980.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.47 : 4,589.70 = 980.18 : x
2. Step 2: Convert to fraction form
   3,061.47/4,589.70 = 980.18/x
3. Step 3: Cross multiply
   3,061.47x = 4,589.70 × 980.18
4. Step 4: Simplify right side
   3,061.47x = 4,498,732.15
5. Step 5: Solve for x
   x = 4,498,732.15/3,061.47
6. Step 6: Final answer
   x = 1,469.47