Finding the Fourth Proportional to 2,083.71, 3,126.17 and 850.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.71 : 3,126.17 = 850.89 : x
2. Step 2: Convert to fraction form
   2,083.71/3,126.17 = 850.89/x
3. Step 3: Cross multiply
   2,083.71x = 3,126.17 × 850.89
4. Step 4: Simplify right side
   2,083.71x = 2,660,028.92
5. Step 5: Solve for x
   x = 2,660,028.92/2,083.71
6. Step 6: Final answer
   x = 1,276.58