Finding the Fourth Proportional to 1,016.71, 1,525.12 and 323.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.71 : 1,525.12 = 323.33 : x
2. Step 2: Convert to fraction form
   1,016.71/1,525.12 = 323.33/x
3. Step 3: Cross multiply
   1,016.71x = 1,525.12 × 323.33
4. Step 4: Simplify right side
   1,016.71x = 493,117.05
5. Step 5: Solve for x
   x = 493,117.05/1,016.71
6. Step 6: Final answer
   x = 485.01