Finding the Fourth Proportional to 2,561.12, 3,842.13 and 895.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.12 : 3,842.13 = 895.15 : x
2. Step 2: Convert to fraction form
   2,561.12/3,842.13 = 895.15/x
3. Step 3: Cross multiply
   2,561.12x = 3,842.13 × 895.15
4. Step 4: Simplify right side
   2,561.12x = 3,439,290.83
5. Step 5: Solve for x
   x = 3,439,290.83/2,561.12
6. Step 6: Final answer
   x = 1,342.89