Finding the Fourth Proportional to 2,069.31, 3,102.78 and 682.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.31 : 3,102.78 = 682.27 : x
2. Step 2: Convert to fraction form
   2,069.31/3,102.78 = 682.27/x
3. Step 3: Cross multiply
   2,069.31x = 3,102.78 × 682.27
4. Step 4: Simplify right side
   2,069.31x = 2,116,928.51
5. Step 5: Solve for x
   x = 2,116,928.51/2,069.31
6. Step 6: Final answer
   x = 1,023.01