Finding the Fourth Proportional to 2,069.40, 2,855.50 and 1,185.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.40 : 2,855.50 = 1,185.24 : x
2. Step 2: Convert to fraction form
   2,069.40/2,855.50 = 1,185.24/x
3. Step 3: Cross multiply
   2,069.40x = 2,855.50 × 1,185.24
4. Step 4: Simplify right side
   2,069.40x = 3,384,452.82
5. Step 5: Solve for x
   x = 3,384,452.82/2,069.40
6. Step 6: Final answer
   x = 1,635.48