Finding the Fourth Proportional to 2,515.42, 3,469.17 and 1,619.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,515.42 : 3,469.17 = 1,619.30 : x
2. Step 2: Convert to fraction form
   2,515.42/3,469.17 = 1,619.30/x
3. Step 3: Cross multiply
   2,515.42x = 3,469.17 × 1,619.30
4. Step 4: Simplify right side
   2,515.42x = 5,617,626.98
5. Step 5: Solve for x
   x = 5,617,626.98/2,515.42
6. Step 6: Final answer
   x = 2,233.28