Finding the Fourth Proportional to 3,392.61, 5,074.88 and 3,185.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,392.61 : 5,074.88 = 3,185.25 : x
2. Step 2: Convert to fraction form
   3,392.61/5,074.88 = 3,185.25/x
3. Step 3: Cross multiply
   3,392.61x = 5,074.88 × 3,185.25
4. Step 4: Simplify right side
   3,392.61x = 16,164,745.59
5. Step 5: Solve for x
   x = 16,164,745.59/3,392.61
6. Step 6: Final answer
   x = 4,764.69