Finding the Fourth Proportional to 1,032.72, 1,548.72 and 416.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,032.72 : 1,548.72 = 416.27 : x
2. Step 2: Convert to fraction form
   1,032.72/1,548.72 = 416.27/x
3. Step 3: Cross multiply
   1,032.72x = 1,548.72 × 416.27
4. Step 4: Simplify right side
   1,032.72x = 644,677.93
5. Step 5: Solve for x
   x = 644,677.93/1,032.72
6. Step 6: Final answer
   x = 624.25