Finding the Fourth Proportional to 2,217.21, 3,058.81 and 1,626.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.21 : 3,058.81 = 1,626.72 : x
2. Step 2: Convert to fraction form
   2,217.21/3,058.81 = 1,626.72/x
3. Step 3: Cross multiply
   2,217.21x = 3,058.81 × 1,626.72
4. Step 4: Simplify right side
   2,217.21x = 4,975,823.34
5. Step 5: Solve for x
   x = 4,975,823.34/2,217.21
6. Step 6: Final answer
   x = 2,244.18