Finding the Fourth Proportional to 2,520.49, 3,781.10 and 789.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.49 : 3,781.10 = 789.25 : x
2. Step 2: Convert to fraction form
   2,520.49/3,781.10 = 789.25/x
3. Step 3: Cross multiply
   2,520.49x = 3,781.10 × 789.25
4. Step 4: Simplify right side
   2,520.49x = 2,984,229.23
5. Step 5: Solve for x
   x = 2,984,229.23/2,520.49
6. Step 6: Final answer
   x = 1,183.99