Finding the Fourth Proportional to 1,016.18, 1,524.49 and 322.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.18 : 1,524.49 = 322.76 : x
2. Step 2: Convert to fraction form
   1,016.18/1,524.49 = 322.76/x
3. Step 3: Cross multiply
   1,016.18x = 1,524.49 × 322.76
4. Step 4: Simplify right side
   1,016.18x = 492,047.40
5. Step 5: Solve for x
   x = 492,047.40/1,016.18
6. Step 6: Final answer
   x = 484.21