Finding the Fourth Proportional to 2,083.05, 2,872.74 and 1,728.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.05 : 2,872.74 = 1,728.41 : x
2. Step 2: Convert to fraction form
   2,083.05/2,872.74 = 1,728.41/x
3. Step 3: Cross multiply
   2,083.05x = 2,872.74 × 1,728.41
4. Step 4: Simplify right side
   2,083.05x = 4,965,262.50
5. Step 5: Solve for x
   x = 4,965,262.50/2,083.05
6. Step 6: Final answer
   x = 2,383.65