Finding the Fourth Proportional to 2,752.89, 4,129.79 and 1,109.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,752.89 : 4,129.79 = 1,109.30 : x
2. Step 2: Convert to fraction form
   2,752.89/4,129.79 = 1,109.30/x
3. Step 3: Cross multiply
   2,752.89x = 4,129.79 × 1,109.30
4. Step 4: Simplify right side
   2,752.89x = 4,581,149.85
5. Step 5: Solve for x
   x = 4,581,149.85/2,752.89
6. Step 6: Final answer
   x = 1,664.13