Finding the Fourth Proportional to 2,144.25, 3,217.92 and 1,105.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.25 : 3,217.92 = 1,105.08 : x
2. Step 2: Convert to fraction form
   2,144.25/3,217.92 = 1,105.08/x
3. Step 3: Cross multiply
   2,144.25x = 3,217.92 × 1,105.08
4. Step 4: Simplify right side
   2,144.25x = 3,556,059.03
5. Step 5: Solve for x
   x = 3,556,059.03/2,144.25
6. Step 6: Final answer
   x = 1,658.42