Finding the Fourth Proportional to 6,983.69, 10,477.86 and 2,821.43

Step by Step Solution

1. Step 1: Write the proportion equation
   6,983.69 : 10,477.86 = 2,821.43 : x
2. Step 2: Convert to fraction form
   6,983.69/10,477.86 = 2,821.43/x
3. Step 3: Cross multiply
   6,983.69x = 10,477.86 × 2,821.43
4. Step 4: Simplify right side
   6,983.69x = 29,562,564.15
5. Step 5: Solve for x
   x = 29,562,564.15/6,983.69
6. Step 6: Final answer
   x = 4,233.09