Finding the Fourth Proportional to 2,167.31, 3,252.38 and 868.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167.31 : 3,252.38 = 868.88 : x
2. Step 2: Convert to fraction form
   2,167.31/3,252.38 = 868.88/x
3. Step 3: Cross multiply
   2,167.31x = 3,252.38 × 868.88
4. Step 4: Simplify right side
   2,167.31x = 2,825,907.33
5. Step 5: Solve for x
   x = 2,825,907.33/2,167.31
6. Step 6: Final answer
   x = 1,303.88