Finding the Fourth Proportional to 3,613.91, 5,408.10 and 2,227.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613.91 : 5,408.10 = 2,227.59 : x
2. Step 2: Convert to fraction form
   3,613.91/5,408.10 = 2,227.59/x
3. Step 3: Cross multiply
   3,613.91x = 5,408.10 × 2,227.59
4. Step 4: Simplify right side
   3,613.91x = 12,047,029.48
5. Step 5: Solve for x
   x = 12,047,029.48/3,613.91
6. Step 6: Final answer
   x = 3,333.52