Finding the Fourth Proportional to 2,100.32, 3,149.94 and 868.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.32 : 3,149.94 = 868.08 : x
2. Step 2: Convert to fraction form
   2,100.32/3,149.94 = 868.08/x
3. Step 3: Cross multiply
   2,100.32x = 3,149.94 × 868.08
4. Step 4: Simplify right side
   2,100.32x = 2,734,399.92
5. Step 5: Solve for x
   x = 2,734,399.92/2,100.32
6. Step 6: Final answer
   x = 1,301.90