Finding the Fourth Proportional to 1,016.00, 1,524.62 and 399.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.00 : 1,524.62 = 399.59 : x
2. Step 2: Convert to fraction form
   1,016.00/1,524.62 = 399.59/x
3. Step 3: Cross multiply
   1,016.00x = 1,524.62 × 399.59
4. Step 4: Simplify right side
   1,016.00x = 609,227.72
5. Step 5: Solve for x
   x = 609,227.72/1,016.00
6. Step 6: Final answer
   x = 599.64