Finding the Fourth Proportional to 2,581.88, 3,871.22 and 850.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.88 : 3,871.22 = 850.04 : x
2. Step 2: Convert to fraction form
   2,581.88/3,871.22 = 850.04/x
3. Step 3: Cross multiply
   2,581.88x = 3,871.22 × 850.04
4. Step 4: Simplify right side
   2,581.88x = 3,290,691.85
5. Step 5: Solve for x
   x = 3,290,691.85/2,581.88
6. Step 6: Final answer
   x = 1,274.53