Finding the Fourth Proportional to 2,088.34, 3,131.50 and 789.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.34 : 3,131.50 = 789.92 : x
2. Step 2: Convert to fraction form
   2,088.34/3,131.50 = 789.92/x
3. Step 3: Cross multiply
   2,088.34x = 3,131.50 × 789.92
4. Step 4: Simplify right side
   2,088.34x = 2,473,634.48
5. Step 5: Solve for x
   x = 2,473,634.48/2,088.34
6. Step 6: Final answer
   x = 1,184.50