Finding the Fourth Proportional to 1,480.55, 2,043.17 and 817.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,480.55 : 2,043.17 = 817.39 : x
2. Step 2: Convert to fraction form
   1,480.55/2,043.17 = 817.39/x
3. Step 3: Cross multiply
   1,480.55x = 2,043.17 × 817.39
4. Step 4: Simplify right side
   1,480.55x = 1,670,066.73
5. Step 5: Solve for x
   x = 1,670,066.73/1,480.55
6. Step 6: Final answer
   x = 1,128.00