Finding the Fourth Proportional to 1,470.47, 2,028.98 and 1,078.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,470.47 : 2,028.98 = 1,078.43 : x
2. Step 2: Convert to fraction form
   1,470.47/2,028.98 = 1,078.43/x
3. Step 3: Cross multiply
   1,470.47x = 2,028.98 × 1,078.43
4. Step 4: Simplify right side
   1,470.47x = 2,188,105.45
5. Step 5: Solve for x
   x = 2,188,105.45/1,470.47
6. Step 6: Final answer
   x = 1,488.04