Finding the Fourth Proportional to 2,069.41, 2,855.71 and 1,185.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.41 : 2,855.71 = 1,185.30 : x
2. Step 2: Convert to fraction form
   2,069.41/2,855.71 = 1,185.30/x
3. Step 3: Cross multiply
   2,069.41x = 2,855.71 × 1,185.30
4. Step 4: Simplify right side
   2,069.41x = 3,384,873.06
5. Step 5: Solve for x
   x = 3,384,873.06/2,069.41
6. Step 6: Final answer
   x = 1,635.67