Finding the Fourth Proportional to 2,728.72, 4,094.97 and 1,085.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728.72 : 4,094.97 = 1,085.11 : x
2. Step 2: Convert to fraction form
   2,728.72/4,094.97 = 1,085.11/x
3. Step 3: Cross multiply
   2,728.72x = 4,094.97 × 1,085.11
4. Step 4: Simplify right side
   2,728.72x = 4,443,492.90
5. Step 5: Solve for x
   x = 4,443,492.90/2,728.72
6. Step 6: Final answer
   x = 1,628.42