Finding the Fourth Proportional to 3,648.38, 5,471.49 and 1,015.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648.38 : 5,471.49 = 1,015.28 : x
2. Step 2: Convert to fraction form
   3,648.38/5,471.49 = 1,015.28/x
3. Step 3: Cross multiply
   3,648.38x = 5,471.49 × 1,015.28
4. Step 4: Simplify right side
   3,648.38x = 5,555,067.01
5. Step 5: Solve for x
   x = 5,555,067.01/3,648.38
6. Step 6: Final answer
   x = 1,522.61