Finding the Fourth Proportional to 2,728.52, 4,093.37 and 1,085.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728.52 : 4,093.37 = 1,085.03 : x
2. Step 2: Convert to fraction form
   2,728.52/4,093.37 = 1,085.03/x
3. Step 3: Cross multiply
   2,728.52x = 4,093.37 × 1,085.03
4. Step 4: Simplify right side
   2,728.52x = 4,441,403.36
5. Step 5: Solve for x
   x = 4,441,403.36/2,728.52
6. Step 6: Final answer
   x = 1,627.77