Finding the Fourth Proportional to 3,150.40, 4,720.32 and 2,224.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,150.40 : 4,720.32 = 2,224.42 : x
2. Step 2: Convert to fraction form
   3,150.40/4,720.32 = 2,224.42/x
3. Step 3: Cross multiply
   3,150.40x = 4,720.32 × 2,224.42
4. Step 4: Simplify right side
   3,150.40x = 10,499,974.21
5. Step 5: Solve for x
   x = 10,499,974.21/3,150.40
6. Step 6: Final answer
   x = 3,332.90