Finding the Fourth Proportional to 3,997.24, 5,516.18 and 2,228.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.24 : 5,516.18 = 2,228.74 : x
2. Step 2: Convert to fraction form
   3,997.24/5,516.18 = 2,228.74/x
3. Step 3: Cross multiply
   3,997.24x = 5,516.18 × 2,228.74
4. Step 4: Simplify right side
   3,997.24x = 12,294,131.01
5. Step 5: Solve for x
   x = 12,294,131.01/3,997.24
6. Step 6: Final answer
   x = 3,075.65