Finding the Fourth Proportional to 1,208.32, 1,667.49 and 684.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.32 : 1,667.49 = 684.34 : x
2. Step 2: Convert to fraction form
   1,208.32/1,667.49 = 684.34/x
3. Step 3: Cross multiply
   1,208.32x = 1,667.49 × 684.34
4. Step 4: Simplify right side
   1,208.32x = 1,141,130.11
5. Step 5: Solve for x
   x = 1,141,130.11/1,208.32
6. Step 6: Final answer
   x = 944.39