Finding the Fourth Proportional to 2,069.22, 2,855.64 and 1,185.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.22 : 2,855.64 = 1,185.17 : x
2. Step 2: Convert to fraction form
   2,069.22/2,855.64 = 1,185.17/x
3. Step 3: Cross multiply
   2,069.22x = 2,855.64 × 1,185.17
4. Step 4: Simplify right side
   2,069.22x = 3,384,409.02
5. Step 5: Solve for x
   x = 3,384,409.02/2,069.22
6. Step 6: Final answer
   x = 1,635.59