Finding the Fourth Proportional to 1,458.27, 2,012.18 and 868.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,458.27 : 2,012.18 = 868.59 : x
2. Step 2: Convert to fraction form
   1,458.27/2,012.18 = 868.59/x
3. Step 3: Cross multiply
   1,458.27x = 2,012.18 × 868.59
4. Step 4: Simplify right side
   1,458.27x = 1,747,755.08
5. Step 5: Solve for x
   x = 1,747,755.08/1,458.27
6. Step 6: Final answer
   x = 1,198.51