Finding the Fourth Proportional to 2,065.11, 3,095.50 and 678.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.11 : 3,095.50 = 678.09 : x
2. Step 2: Convert to fraction form
   2,065.11/3,095.50 = 678.09/x
3. Step 3: Cross multiply
   2,065.11x = 3,095.50 × 678.09
4. Step 4: Simplify right side
   2,065.11x = 2,099,027.60
5. Step 5: Solve for x
   x = 2,099,027.60/2,065.11
6. Step 6: Final answer
   x = 1,016.42