Finding the Fourth Proportional to 3,144.83, 4,339.92 and 1,728.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.83 : 4,339.92 = 1,728.60 : x
2. Step 2: Convert to fraction form
   3,144.83/4,339.92 = 1,728.60/x
3. Step 3: Cross multiply
   3,144.83x = 4,339.92 × 1,728.60
4. Step 4: Simplify right side
   3,144.83x = 7,501,985.71
5. Step 5: Solve for x
   x = 7,501,985.71/3,144.83
6. Step 6: Final answer
   x = 2,385.50