Finding the Fourth Proportional to 1,454.98, 2,007.57 and 865.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,454.98 : 2,007.57 = 865.30 : x
2. Step 2: Convert to fraction form
   1,454.98/2,007.57 = 865.30/x
3. Step 3: Cross multiply
   1,454.98x = 2,007.57 × 865.30
4. Step 4: Simplify right side
   1,454.98x = 1,737,150.32
5. Step 5: Solve for x
   x = 1,737,150.32/1,454.98
6. Step 6: Final answer
   x = 1,193.93