Finding the Fourth Proportional to 1,073.92, 1,482.72 and 824.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,073.92 : 1,482.72 = 824.79 : x
2. Step 2: Convert to fraction form
   1,073.92/1,482.72 = 824.79/x
3. Step 3: Cross multiply
   1,073.92x = 1,482.72 × 824.79
4. Step 4: Simplify right side
   1,073.92x = 1,222,934.69
5. Step 5: Solve for x
   x = 1,222,934.69/1,073.92
6. Step 6: Final answer
   x = 1,138.76