Finding the Fourth Proportional to 2,540.79, 3,810.12 and 896.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,540.79 : 3,810.12 = 896.59 : x
2. Step 2: Convert to fraction form
   2,540.79/3,810.12 = 896.59/x
3. Step 3: Cross multiply
   2,540.79x = 3,810.12 × 896.59
4. Step 4: Simplify right side
   2,540.79x = 3,416,115.49
5. Step 5: Solve for x
   x = 3,416,115.49/2,540.79
6. Step 6: Final answer
   x = 1,344.51