Finding the Fourth Proportional to 1,016.72, 1,524.18 and 400.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.72 : 1,524.18 = 400.46 : x
2. Step 2: Convert to fraction form
   1,016.72/1,524.18 = 400.46/x
3. Step 3: Cross multiply
   1,016.72x = 1,524.18 × 400.46
4. Step 4: Simplify right side
   1,016.72x = 610,373.12
5. Step 5: Solve for x
   x = 610,373.12/1,016.72
6. Step 6: Final answer
   x = 600.34