Finding the Fourth Proportional to 2,262.70, 3,391.89 and 800.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,262.70 : 3,391.89 = 800.83 : x
2. Step 2: Convert to fraction form
   2,262.70/3,391.89 = 800.83/x
3. Step 3: Cross multiply
   2,262.70x = 3,391.89 × 800.83
4. Step 4: Simplify right side
   2,262.70x = 2,716,327.27
5. Step 5: Solve for x
   x = 2,716,327.27/2,262.70
6. Step 6: Final answer
   x = 1,200.48