Finding the Fourth Proportional to 2,476.47, 3,413.70 and 1,689.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,476.47 : 3,413.70 = 1,689.15 : x
2. Step 2: Convert to fraction form
   2,476.47/3,413.70 = 1,689.15/x
3. Step 3: Cross multiply
   2,476.47x = 3,413.70 × 1,689.15
4. Step 4: Simplify right side
   2,476.47x = 5,766,251.36
5. Step 5: Solve for x
   x = 5,766,251.36/2,476.47
6. Step 6: Final answer
   x = 2,328.42