Finding the Fourth Proportional to 3,996.43, 5,996.37 and 2,145.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,996.43 : 5,996.37 = 2,145.38 : x
2. Step 2: Convert to fraction form
   3,996.43/5,996.37 = 2,145.38/x
3. Step 3: Cross multiply
   3,996.43x = 5,996.37 × 2,145.38
4. Step 4: Simplify right side
   3,996.43x = 12,864,518.92
5. Step 5: Solve for x
   x = 12,864,518.92/3,996.43
6. Step 6: Final answer
   x = 3,219.00