Finding the Fourth Proportional to 1,493.81, 2,240.42 and 868.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.81 : 2,240.42 = 868.73 : x
2. Step 2: Convert to fraction form
   1,493.81/2,240.42 = 868.73/x
3. Step 3: Cross multiply
   1,493.81x = 2,240.42 × 868.73
4. Step 4: Simplify right side
   1,493.81x = 1,946,304.52
5. Step 5: Solve for x
   x = 1,946,304.52/1,493.81
6. Step 6: Final answer
   x = 1,302.92