Finding the Fourth Proportional to 3,055.32, 4,216.18 and 1,728.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,055.32 : 4,216.18 = 1,728.81 : x
2. Step 2: Convert to fraction form
   3,055.32/4,216.18 = 1,728.81/x
3. Step 3: Cross multiply
   3,055.32x = 4,216.18 × 1,728.81
4. Step 4: Simplify right side
   3,055.32x = 7,288,965.50
5. Step 5: Solve for x
   x = 7,288,965.50/3,055.32
6. Step 6: Final answer
   x = 2,385.66