Finding the Fourth Proportional to 1,480.52, 2,043.12 and 817.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,480.52 : 2,043.12 = 817.40 : x
2. Step 2: Convert to fraction form
   1,480.52/2,043.12 = 817.40/x
3. Step 3: Cross multiply
   1,480.52x = 2,043.12 × 817.40
4. Step 4: Simplify right side
   1,480.52x = 1,670,046.29
5. Step 5: Solve for x
   x = 1,670,046.29/1,480.52
6. Step 6: Final answer
   x = 1,128.01