Finding the Fourth Proportional to 2,087.76, 3,132.45 and 789.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.76 : 3,132.45 = 789.33 : x
2. Step 2: Convert to fraction form
   2,087.76/3,132.45 = 789.33/x
3. Step 3: Cross multiply
   2,087.76x = 3,132.45 × 789.33
4. Step 4: Simplify right side
   2,087.76x = 2,472,528.67
5. Step 5: Solve for x
   x = 2,472,528.67/2,087.76
6. Step 6: Final answer
   x = 1,184.30