Finding the Fourth Proportional to 2,224.01, 3,315.75 and 2,167.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,224.01 : 3,315.75 = 2,167.21 : x
2. Step 2: Convert to fraction form
   2,224.01/3,315.75 = 2,167.21/x
3. Step 3: Cross multiply
   2,224.01x = 3,315.75 × 2,167.21
4. Step 4: Simplify right side
   2,224.01x = 7,185,899.14
5. Step 5: Solve for x
   x = 7,185,899.14/2,224.01
6. Step 6: Final answer
   x = 3,231.06