Finding the Fourth Proportional to 2,982.18, 4,470.03 and 1,248.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,982.18 : 4,470.03 = 1,248.78 : x
2. Step 2: Convert to fraction form
   2,982.18/4,470.03 = 1,248.78/x
3. Step 3: Cross multiply
   2,982.18x = 4,470.03 × 1,248.78
4. Step 4: Simplify right side
   2,982.18x = 5,582,084.06
5. Step 5: Solve for x
   x = 5,582,084.06/2,982.18
6. Step 6: Final answer
   x = 1,871.81