Finding the Fourth Proportional to 2,081.06, 2,866.05 and 1,728.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.06 : 2,866.05 = 1,728.53 : x
2. Step 2: Convert to fraction form
   2,081.06/2,866.05 = 1,728.53/x
3. Step 3: Cross multiply
   2,081.06x = 2,866.05 × 1,728.53
4. Step 4: Simplify right side
   2,081.06x = 4,954,053.41
5. Step 5: Solve for x
   x = 4,954,053.41/2,081.06
6. Step 6: Final answer
   x = 2,380.54