Finding the Fourth Proportional to 2,717.34, 4,075.92 and 868.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,717.34 : 4,075.92 = 868.57 : x
2. Step 2: Convert to fraction form
   2,717.34/4,075.92 = 868.57/x
3. Step 3: Cross multiply
   2,717.34x = 4,075.92 × 868.57
4. Step 4: Simplify right side
   2,717.34x = 3,540,221.83
5. Step 5: Solve for x
   x = 3,540,221.83/2,717.34
6. Step 6: Final answer
   x = 1,302.83