Finding the Fourth Proportional to 3,142.42, 4,336.72 and 1,745.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,142.42 : 4,336.72 = 1,745.20 : x
2. Step 2: Convert to fraction form
   3,142.42/4,336.72 = 1,745.20/x
3. Step 3: Cross multiply
   3,142.42x = 4,336.72 × 1,745.20
4. Step 4: Simplify right side
   3,142.42x = 7,568,443.74
5. Step 5: Solve for x
   x = 7,568,443.74/3,142.42
6. Step 6: Final answer
   x = 2,408.48