Finding the Fourth Proportional to 2,473.58, 3,413.59 and 1,687.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,473.58 : 3,413.59 = 1,687.88 : x
2. Step 2: Convert to fraction form
   2,473.58/3,413.59 = 1,687.88/x
3. Step 3: Cross multiply
   2,473.58x = 3,413.59 × 1,687.88
4. Step 4: Simplify right side
   2,473.58x = 5,761,734.60
5. Step 5: Solve for x
   x = 5,761,734.60/2,473.58
6. Step 6: Final answer
   x = 2,329.31