Finding the Fourth Proportional to 1,010.72, 1,524.86 and 1,008.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010.72 : 1,524.86 = 1,008.02 : x
2. Step 2: Convert to fraction form
   1,010.72/1,524.86 = 1,008.02/x
3. Step 3: Cross multiply
   1,010.72x = 1,524.86 × 1,008.02
4. Step 4: Simplify right side
   1,010.72x = 1,537,089.38
5. Step 5: Solve for x
   x = 1,537,089.38/1,010.72
6. Step 6: Final answer
   x = 1,520.79