Finding the Fourth Proportional to 3,408.05, 5,112.05 and 942.85

Step by Step Solution

1. Step 1: Write the proportion equation
   3,408.05 : 5,112.05 = 942.85 : x
2. Step 2: Convert to fraction form
   3,408.05/5,112.05 = 942.85/x
3. Step 3: Cross multiply
   3,408.05x = 5,112.05 × 942.85
4. Step 4: Simplify right side
   3,408.05x = 4,819,870.78
5. Step 5: Solve for x
   x = 4,819,870.78/3,408.05
6. Step 6: Final answer
   x = 1,414.26