Finding the Fourth Proportional to 2,561.09, 3,841.52 and 712.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.09 : 3,841.52 = 712.31 : x
2. Step 2: Convert to fraction form
   2,561.09/3,841.52 = 712.31/x
3. Step 3: Cross multiply
   2,561.09x = 3,841.52 × 712.31
4. Step 4: Simplify right side
   2,561.09x = 2,736,330.34
5. Step 5: Solve for x
   x = 2,736,330.34/2,561.09
6. Step 6: Final answer
   x = 1,068.43