Finding the Fourth Proportional to 2,270.52, 3,404.88 and 789.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.52 : 3,404.88 = 789.30 : x
2. Step 2: Convert to fraction form
   2,270.52/3,404.88 = 789.30/x
3. Step 3: Cross multiply
   2,270.52x = 3,404.88 × 789.30
4. Step 4: Simplify right side
   2,270.52x = 2,687,471.78
5. Step 5: Solve for x
   x = 2,687,471.78/2,270.52
6. Step 6: Final answer
   x = 1,183.64