Finding the Fourth Proportional to 2,540.81, 3,810.27 and 896.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,540.81 : 3,810.27 = 896.92 : x
2. Step 2: Convert to fraction form
   2,540.81/3,810.27 = 896.92/x
3. Step 3: Cross multiply
   2,540.81x = 3,810.27 × 896.92
4. Step 4: Simplify right side
   2,540.81x = 3,417,507.37
5. Step 5: Solve for x
   x = 3,417,507.37/2,540.81
6. Step 6: Final answer
   x = 1,345.05