Finding the Fourth Proportional to 1,206.83, 1,665.41 and 682.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,206.83 : 1,665.41 = 682.83 : x
2. Step 2: Convert to fraction form
   1,206.83/1,665.41 = 682.83/x
3. Step 3: Cross multiply
   1,206.83x = 1,665.41 × 682.83
4. Step 4: Simplify right side
   1,206.83x = 1,137,188.50
5. Step 5: Solve for x
   x = 1,137,188.50/1,206.83
6. Step 6: Final answer
   x = 942.30