Finding the Fourth Proportional to 1,425.46, 1,966.59 and 865.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425.46 : 1,966.59 = 865.73 : x
2. Step 2: Convert to fraction form
   1,425.46/1,966.59 = 865.73/x
3. Step 3: Cross multiply
   1,425.46x = 1,966.59 × 865.73
4. Step 4: Simplify right side
   1,425.46x = 1,702,535.96
5. Step 5: Solve for x
   x = 1,702,535.96/1,425.46
6. Step 6: Final answer
   x = 1,194.38