Finding the Fourth Proportional to 1,340.83, 1,850.75 and 868.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340.83 : 1,850.75 = 868.75 : x
2. Step 2: Convert to fraction form
   1,340.83/1,850.75 = 868.75/x
3. Step 3: Cross multiply
   1,340.83x = 1,850.75 × 868.75
4. Step 4: Simplify right side
   1,340.83x = 1,607,838.55
5. Step 5: Solve for x
   x = 1,607,838.55/1,340.83
6. Step 6: Final answer
   x = 1,199.14