Finding the Fourth Proportional to 2,587.83, 3,882.25 and 833.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.83 : 3,882.25 = 833.30 : x
2. Step 2: Convert to fraction form
   2,587.83/3,882.25 = 833.30/x
3. Step 3: Cross multiply
   2,587.83x = 3,882.25 × 833.30
4. Step 4: Simplify right side
   2,587.83x = 3,235,061.60
5. Step 5: Solve for x
   x = 3,235,061.60/2,587.83
6. Step 6: Final answer
   x = 1,250.11