Finding the Fourth Proportional to 2,540.61, 3,811.23 and 896.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,540.61 : 3,811.23 = 896.83 : x
2. Step 2: Convert to fraction form
   2,540.61/3,811.23 = 896.83/x
3. Step 3: Cross multiply
   2,540.61x = 3,811.23 × 896.83
4. Step 4: Simplify right side
   2,540.61x = 3,418,015.87
5. Step 5: Solve for x
   x = 3,418,015.87/2,540.61
6. Step 6: Final answer
   x = 1,345.35