Finding the Fourth Proportional to 3,997.21, 5,991.94 and 2,243.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.21 : 5,991.94 = 2,243.05 : x
2. Step 2: Convert to fraction form
   3,997.21/5,991.94 = 2,243.05/x
3. Step 3: Cross multiply
   3,997.21x = 5,991.94 × 2,243.05
4. Step 4: Simplify right side
   3,997.21x = 13,440,200.43
5. Step 5: Solve for x
   x = 13,440,200.43/3,997.21
6. Step 6: Final answer
   x = 3,362.40