Finding the Fourth Proportional to 2,226.24, 3,069.42 and 1,428.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,226.24 : 3,069.42 = 1,428.15 : x
2. Step 2: Convert to fraction form
   2,226.24/3,069.42 = 1,428.15/x
3. Step 3: Cross multiply
   2,226.24x = 3,069.42 × 1,428.15
4. Step 4: Simplify right side
   2,226.24x = 4,383,592.17
5. Step 5: Solve for x
   x = 4,383,592.17/2,226.24
6. Step 6: Final answer
   x = 1,969.06