Finding the Fourth Proportional to 2,069.07, 2,855.55 and 1,185

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.07 : 2,855.55 = 1,185 : x
2. Step 2: Convert to fraction form
   2,069.07/2,855.55 = 1,185/x
3. Step 3: Cross multiply
   2,069.07x = 2,855.55 × 1,185
4. Step 4: Simplify right side
   2,069.07x = 3,383,826.75
5. Step 5: Solve for x
   x = 3,383,826.75/2,069.07
6. Step 6: Final answer
   x = 1,635.43