Finding the Fourth Proportional to 2,540.24, 3,812.06 and 896.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,540.24 : 3,812.06 = 896.79 : x
2. Step 2: Convert to fraction form
   2,540.24/3,812.06 = 896.79/x
3. Step 3: Cross multiply
   2,540.24x = 3,812.06 × 896.79
4. Step 4: Simplify right side
   2,540.24x = 3,418,617.29
5. Step 5: Solve for x
   x = 3,418,617.29/2,540.24
6. Step 6: Final answer
   x = 1,345.79