Finding the Fourth Proportional to 2,087.94, 3,132.45 and 789.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.94 : 3,132.45 = 789.42 : x
2. Step 2: Convert to fraction form
   2,087.94/3,132.45 = 789.42/x
3. Step 3: Cross multiply
   2,087.94x = 3,132.45 × 789.42
4. Step 4: Simplify right side
   2,087.94x = 2,472,818.68
5. Step 5: Solve for x
   x = 2,472,818.68/2,087.94
6. Step 6: Final answer
   x = 1,184.33