Finding the Fourth Proportional to 3,408.17, 5,112.83 and 1,067.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,408.17 : 5,112.83 = 1,067.72 : x
2. Step 2: Convert to fraction form
   3,408.17/5,112.83 = 1,067.72/x
3. Step 3: Cross multiply
   3,408.17x = 5,112.83 × 1,067.72
4. Step 4: Simplify right side
   3,408.17x = 5,459,039.94
5. Step 5: Solve for x
   x = 5,459,039.94/3,408.17
6. Step 6: Final answer
   x = 1,601.75