Finding the Fourth Proportional to 2,100.38, 3,151.08 and 868.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.38 : 3,151.08 = 868.14 : x
2. Step 2: Convert to fraction form
   2,100.38/3,151.08 = 868.14/x
3. Step 3: Cross multiply
   2,100.38x = 3,151.08 × 868.14
4. Step 4: Simplify right side
   2,100.38x = 2,735,581.85
5. Step 5: Solve for x
   x = 2,735,581.85/2,100.38
6. Step 6: Final answer
   x = 1,302.43