Finding the Fourth Proportional to 2,143.23, 3,216.06 and 1,413.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.23 : 3,216.06 = 1,413.15 : x
2. Step 2: Convert to fraction form
   2,143.23/3,216.06 = 1,413.15/x
3. Step 3: Cross multiply
   2,143.23x = 3,216.06 × 1,413.15
4. Step 4: Simplify right side
   2,143.23x = 4,544,775.19
5. Step 5: Solve for x
   x = 4,544,775.19/2,143.23
6. Step 6: Final answer
   x = 2,120.53