Finding the Fourth Proportional to 1,208.26, 1,667.46 and 684.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.26 : 1,667.46 = 684.46 : x
2. Step 2: Convert to fraction form
   1,208.26/1,667.46 = 684.46/x
3. Step 3: Cross multiply
   1,208.26x = 1,667.46 × 684.46
4. Step 4: Simplify right side
   1,208.26x = 1,141,309.67
5. Step 5: Solve for x
   x = 1,141,309.67/1,208.26
6. Step 6: Final answer
   x = 944.59