Finding the Fourth Proportional to 2,747.36, 4,122.72 and 1,103.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,747.36 : 4,122.72 = 1,103.60 : x
2. Step 2: Convert to fraction form
   2,747.36/4,122.72 = 1,103.60/x
3. Step 3: Cross multiply
   2,747.36x = 4,122.72 × 1,103.60
4. Step 4: Simplify right side
   2,747.36x = 4,549,833.79
5. Step 5: Solve for x
   x = 4,549,833.79/2,747.36
6. Step 6: Final answer
   x = 1,656.07