Finding the Fourth Proportional to 1,065.96, 1,470.18 and 789.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.96 : 1,470.18 = 789.48 : x
2. Step 2: Convert to fraction form
   1,065.96/1,470.18 = 789.48/x
3. Step 3: Cross multiply
   1,065.96x = 1,470.18 × 789.48
4. Step 4: Simplify right side
   1,065.96x = 1,160,677.71
5. Step 5: Solve for x
   x = 1,160,677.71/1,065.96
6. Step 6: Final answer
   x = 1,088.86