Finding the Fourth Proportional to 3,408.34, 5,107.72 and 2,711.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,408.34 : 5,107.72 = 2,711.91 : x
2. Step 2: Convert to fraction form
   3,408.34/5,107.72 = 2,711.91/x
3. Step 3: Cross multiply
   3,408.34x = 5,107.72 × 2,711.91
4. Step 4: Simplify right side
   3,408.34x = 13,851,663.39
5. Step 5: Solve for x
   x = 13,851,663.39/3,408.34
6. Step 6: Final answer
   x = 4,064.05