Finding the Fourth Proportional to 2,717.45, 4,076.63 and 868.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,717.45 : 4,076.63 = 868.42 : x
2. Step 2: Convert to fraction form
   2,717.45/4,076.63 = 868.42/x
3. Step 3: Cross multiply
   2,717.45x = 4,076.63 × 868.42
4. Step 4: Simplify right side
   2,717.45x = 3,540,227.02
5. Step 5: Solve for x
   x = 3,540,227.02/2,717.45
6. Step 6: Final answer
   x = 1,302.78