Finding the Fourth Proportional to 1,073.34, 1,479.81 and 789.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,073.34 : 1,479.81 = 789.54 : x
2. Step 2: Convert to fraction form
   1,073.34/1,479.81 = 789.54/x
3. Step 3: Cross multiply
   1,073.34x = 1,479.81 × 789.54
4. Step 4: Simplify right side
   1,073.34x = 1,168,369.19
5. Step 5: Solve for x
   x = 1,168,369.19/1,073.34
6. Step 6: Final answer
   x = 1,088.54