Finding the Fourth Proportional to 2,561.36, 3,841.97 and 712.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.36 : 3,841.97 = 712.43 : x
2. Step 2: Convert to fraction form
   2,561.36/3,841.97 = 712.43/x
3. Step 3: Cross multiply
   2,561.36x = 3,841.97 × 712.43
4. Step 4: Simplify right side
   2,561.36x = 2,737,111.92
5. Step 5: Solve for x
   x = 2,737,111.92/2,561.36
6. Step 6: Final answer
   x = 1,068.62