Finding the Fourth Proportional to 1,017.06, 1,524.72 and 400.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.06 : 1,524.72 = 400.62 : x
2. Step 2: Convert to fraction form
   1,017.06/1,524.72 = 400.62/x
3. Step 3: Cross multiply
   1,017.06x = 1,524.72 × 400.62
4. Step 4: Simplify right side
   1,017.06x = 610,833.33
5. Step 5: Solve for x
   x = 610,833.33/1,017.06
6. Step 6: Final answer
   x = 600.59