Finding the Fourth Proportional to 1,151.29, 1,728.69 and 1,015.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.29 : 1,728.69 = 1,015.48 : x
2. Step 2: Convert to fraction form
   1,151.29/1,728.69 = 1,015.48/x
3. Step 3: Cross multiply
   1,151.29x = 1,728.69 × 1,015.48
4. Step 4: Simplify right side
   1,151.29x = 1,755,450.12
5. Step 5: Solve for x
   x = 1,755,450.12/1,151.29
6. Step 6: Final answer
   x = 1,524.77