Finding the Fourth Proportional to 3,899.20, 5,846.69 and 1,705.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,899.20 : 5,846.69 = 1,705.37 : x
2. Step 2: Convert to fraction form
   3,899.20/5,846.69 = 1,705.37/x
3. Step 3: Cross multiply
   3,899.20x = 5,846.69 × 1,705.37
4. Step 4: Simplify right side
   3,899.20x = 9,970,744.76
5. Step 5: Solve for x
   x = 9,970,744.76/3,899.20
6. Step 6: Final answer
   x = 2,557.13