Finding the Fourth Proportional to 2,751.85, 4,128.29 and 1,108.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,751.85 : 4,128.29 = 1,108.53 : x
2. Step 2: Convert to fraction form
   2,751.85/4,128.29 = 1,108.53/x
3. Step 3: Cross multiply
   2,751.85x = 4,128.29 × 1,108.53
4. Step 4: Simplify right side
   2,751.85x = 4,576,333.31
5. Step 5: Solve for x
   x = 4,576,333.31/2,751.85
6. Step 6: Final answer
   x = 1,663.00