Finding the Fourth Proportional to 2,022.08, 3,031.77 and 789.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,022.08 : 3,031.77 = 789.61 : x
2. Step 2: Convert to fraction form
   2,022.08/3,031.77 = 789.61/x
3. Step 3: Cross multiply
   2,022.08x = 3,031.77 × 789.61
4. Step 4: Simplify right side
   2,022.08x = 2,393,915.91
5. Step 5: Solve for x
   x = 2,393,915.91/2,022.08
6. Step 6: Final answer
   x = 1,183.89