Finding the Fourth Proportional to 3,456.51, 5,185.80 and 1,608.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,456.51 : 5,185.80 = 1,608.72 : x
2. Step 2: Convert to fraction form
   3,456.51/5,185.80 = 1,608.72/x
3. Step 3: Cross multiply
   3,456.51x = 5,185.80 × 1,608.72
4. Step 4: Simplify right side
   3,456.51x = 8,342,500.18
5. Step 5: Solve for x
   x = 8,342,500.18/3,456.51
6. Step 6: Final answer
   x = 2,413.56