Finding the Fourth Proportional to 2,747.52, 4,122.60 and 1,105.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,747.52 : 4,122.60 = 1,105.20 : x
2. Step 2: Convert to fraction form
   2,747.52/4,122.60 = 1,105.20/x
3. Step 3: Cross multiply
   2,747.52x = 4,122.60 × 1,105.20
4. Step 4: Simplify right side
   2,747.52x = 4,556,297.52
5. Step 5: Solve for x
   x = 4,556,297.52/2,747.52
6. Step 6: Final answer
   x = 1,658.33