Finding the Fourth Proportional to 3,383.30, 5,076.77 and 2,561.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,383.30 : 5,076.77 = 2,561.37 : x
2. Step 2: Convert to fraction form
   3,383.30/5,076.77 = 2,561.37/x
3. Step 3: Cross multiply
   3,383.30x = 5,076.77 × 2,561.37
4. Step 4: Simplify right side
   3,383.30x = 13,003,473.57
5. Step 5: Solve for x
   x = 13,003,473.57/3,383.30
6. Step 6: Final answer
   x = 3,843.43