Finding the Fourth Proportional to 2,413.59, 3,621.42 and 854.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,413.59 : 3,621.42 = 854.73 : x
2. Step 2: Convert to fraction form
   2,413.59/3,621.42 = 854.73/x
3. Step 3: Cross multiply
   2,413.59x = 3,621.42 × 854.73
4. Step 4: Simplify right side
   2,413.59x = 3,095,336.32
5. Step 5: Solve for x
   x = 3,095,336.32/2,413.59
6. Step 6: Final answer
   x = 1,282.46