Finding the Fourth Proportional to 2,850.34, 3,934.22 and 2,011.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,850.34 : 3,934.22 = 2,011.30 : x
2. Step 2: Convert to fraction form
   2,850.34/3,934.22 = 2,011.30/x
3. Step 3: Cross multiply
   2,850.34x = 3,934.22 × 2,011.30
4. Step 4: Simplify right side
   2,850.34x = 7,912,896.69
5. Step 5: Solve for x
   x = 7,912,896.69/2,850.34
6. Step 6: Final answer
   x = 2,776.12