Finding the Fourth Proportional to 3,055.72, 4,216.88 and 1,729.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,055.72 : 4,216.88 = 1,729.42 : x
2. Step 2: Convert to fraction form
   3,055.72/4,216.88 = 1,729.42/x
3. Step 3: Cross multiply
   3,055.72x = 4,216.88 × 1,729.42
4. Step 4: Simplify right side
   3,055.72x = 7,292,756.61
5. Step 5: Solve for x
   x = 7,292,756.61/3,055.72
6. Step 6: Final answer
   x = 2,386.59