Finding the Fourth Proportional to 2,088.84, 3,131.34 and 789.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.84 : 3,131.34 = 789.32 : x
2. Step 2: Convert to fraction form
   2,088.84/3,131.34 = 789.32/x
3. Step 3: Cross multiply
   2,088.84x = 3,131.34 × 789.32
4. Step 4: Simplify right side
   2,088.84x = 2,471,629.29
5. Step 5: Solve for x
   x = 2,471,629.29/2,088.84
6. Step 6: Final answer
   x = 1,183.25