Finding the Fourth Proportional to 1,039.03, 1,433.33 and 789.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039.03 : 1,433.33 = 789.92 : x
2. Step 2: Convert to fraction form
   1,039.03/1,433.33 = 789.92/x
3. Step 3: Cross multiply
   1,039.03x = 1,433.33 × 789.92
4. Step 4: Simplify right side
   1,039.03x = 1,132,213.25
5. Step 5: Solve for x
   x = 1,132,213.25/1,039.03
6. Step 6: Final answer
   x = 1,089.69