Finding the Fourth Proportional to 2,855.34, 3,936.87 and 2,069.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,855.34 : 3,936.87 = 2,069.10 : x
2. Step 2: Convert to fraction form
   2,855.34/3,936.87 = 2,069.10/x
3. Step 3: Cross multiply
   2,855.34x = 3,936.87 × 2,069.10
4. Step 4: Simplify right side
   2,855.34x = 8,145,777.72
5. Step 5: Solve for x
   x = 8,145,777.72/2,855.34
6. Step 6: Final answer
   x = 2,852.82