Finding the Fourth Proportional to 2,751.48, 4,128.44 and 1,111.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,751.48 : 4,128.44 = 1,111.23 : x
2. Step 2: Convert to fraction form
   2,751.48/4,128.44 = 1,111.23/x
3. Step 3: Cross multiply
   2,751.48x = 4,128.44 × 1,111.23
4. Step 4: Simplify right side
   2,751.48x = 4,587,630.50
5. Step 5: Solve for x
   x = 4,587,630.50/2,751.48
6. Step 6: Final answer
   x = 1,667.33