Finding the Fourth Proportional to 2,443.20, 3,658.72 and 1,709.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.20 : 3,658.72 = 1,709.34 : x
2. Step 2: Convert to fraction form
   2,443.20/3,658.72 = 1,709.34/x
3. Step 3: Cross multiply
   2,443.20x = 3,658.72 × 1,709.34
4. Step 4: Simplify right side
   2,443.20x = 6,253,969.60
5. Step 5: Solve for x
   x = 6,253,969.60/2,443.20
6. Step 6: Final answer
   x = 2,559.75