Finding the Fourth Proportional to 2,512.96, 3,766.56 and 868.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,512.96 : 3,766.56 = 868.48 : x
2. Step 2: Convert to fraction form
   2,512.96/3,766.56 = 868.48/x
3. Step 3: Cross multiply
   2,512.96x = 3,766.56 × 868.48
4. Step 4: Simplify right side
   2,512.96x = 3,271,182.03
5. Step 5: Solve for x
   x = 3,271,182.03/2,512.96
6. Step 6: Final answer
   x = 1,301.72