Finding the Fourth Proportional to 1,016.68, 1,524.56 and 323.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.68 : 1,524.56 = 323.22 : x
2. Step 2: Convert to fraction form
   1,016.68/1,524.56 = 323.22/x
3. Step 3: Cross multiply
   1,016.68x = 1,524.56 × 323.22
4. Step 4: Simplify right side
   1,016.68x = 492,768.28
5. Step 5: Solve for x
   x = 492,768.28/1,016.68
6. Step 6: Final answer
   x = 484.68