Finding the Fourth Proportional to 1,016.00, 1,523.24 and 399.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.00 : 1,523.24 = 399.38 : x
2. Step 2: Convert to fraction form
   1,016.00/1,523.24 = 399.38/x
3. Step 3: Cross multiply
   1,016.00x = 1,523.24 × 399.38
4. Step 4: Simplify right side
   1,016.00x = 608,341.98
5. Step 5: Solve for x
   x = 608,341.98/1,016.00
6. Step 6: Final answer
   x = 598.76