Finding the Fourth Proportional to 2,139.75, 3,204.59 and 1,795.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.75 : 3,204.59 = 1,795.30 : x
2. Step 2: Convert to fraction form
   2,139.75/3,204.59 = 1,795.30/x
3. Step 3: Cross multiply
   2,139.75x = 3,204.59 × 1,795.30
4. Step 4: Simplify right side
   2,139.75x = 5,753,183.44
5. Step 5: Solve for x
   x = 5,753,183.44/2,139.75
6. Step 6: Final answer
   x = 2,688.72