Finding the Fourth Proportional to 2,069.55, 2,855.86 and 1,185.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.55 : 2,855.86 = 1,185.33 : x
2. Step 2: Convert to fraction form
   2,069.55/2,855.86 = 1,185.33/x
3. Step 3: Cross multiply
   2,069.55x = 2,855.86 × 1,185.33
4. Step 4: Simplify right side
   2,069.55x = 3,385,144.28
5. Step 5: Solve for x
   x = 3,385,144.28/2,069.55
6. Step 6: Final answer
   x = 1,635.69