Finding the Fourth Proportional to 4,002.21, 5,522.31 and 2,233.58

Step by Step Solution

1. Step 1: Write the proportion equation
   4,002.21 : 5,522.31 = 2,233.58 : x
2. Step 2: Convert to fraction form
   4,002.21/5,522.31 = 2,233.58/x
3. Step 3: Cross multiply
   4,002.21x = 5,522.31 × 2,233.58
4. Step 4: Simplify right side
   4,002.21x = 12,334,493.56
5. Step 5: Solve for x
   x = 12,334,493.56/4,002.21
6. Step 6: Final answer
   x = 3,081.92