Finding the Fourth Proportional to 2,980.57, 4,469.42 and 1,248.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.57 : 4,469.42 = 1,248.73 : x
2. Step 2: Convert to fraction form
   2,980.57/4,469.42 = 1,248.73/x
3. Step 3: Cross multiply
   2,980.57x = 4,469.42 × 1,248.73
4. Step 4: Simplify right side
   2,980.57x = 5,581,092.59
5. Step 5: Solve for x
   x = 5,581,092.59/2,980.57
6. Step 6: Final answer
   x = 1,872.49