Finding the Fourth Proportional to 3,513.43, 4,848.56 and 2,021.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,513.43 : 4,848.56 = 2,021.30 : x
2. Step 2: Convert to fraction form
   3,513.43/4,848.56 = 2,021.30/x
3. Step 3: Cross multiply
   3,513.43x = 4,848.56 × 2,021.30
4. Step 4: Simplify right side
   3,513.43x = 9,800,413.01
5. Step 5: Solve for x
   x = 9,800,413.01/3,513.43
6. Step 6: Final answer
   x = 2,789.42