Finding the Fourth Proportional to 3,820.10, 5,727.40 and 1,739.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.10 : 5,727.40 = 1,739.05 : x
2. Step 2: Convert to fraction form
   3,820.10/5,727.40 = 1,739.05/x
3. Step 3: Cross multiply
   3,820.10x = 5,727.40 × 1,739.05
4. Step 4: Simplify right side
   3,820.10x = 9,960,216.30
5. Step 5: Solve for x
   x = 9,960,216.30/3,820.10
6. Step 6: Final answer
   x = 2,607.32