Finding the Fourth Proportional to 2,391.12, 3,585.16 and 1,005.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.12 : 3,585.16 = 1,005.41 : x
2. Step 2: Convert to fraction form
   2,391.12/3,585.16 = 1,005.41/x
3. Step 3: Cross multiply
   2,391.12x = 3,585.16 × 1,005.41
4. Step 4: Simplify right side
   2,391.12x = 3,604,565.94
5. Step 5: Solve for x
   x = 3,604,565.94/2,391.12
6. Step 6: Final answer
   x = 1,507.48