Finding the Fourth Proportional to 3,408.42, 5,109.86 and 1,067.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,408.42 : 5,109.86 = 1,067.22 : x
2. Step 2: Convert to fraction form
   3,408.42/5,109.86 = 1,067.22/x
3. Step 3: Cross multiply
   3,408.42x = 5,109.86 × 1,067.22
4. Step 4: Simplify right side
   3,408.42x = 5,453,339.45
5. Step 5: Solve for x
   x = 5,453,339.45/3,408.42
6. Step 6: Final answer
   x = 1,599.96