Finding the Fourth Proportional to 1,208.01, 1,667.07 and 684.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.01 : 1,667.07 = 684.03 : x
2. Step 2: Convert to fraction form
   1,208.01/1,667.07 = 684.03/x
3. Step 3: Cross multiply
   1,208.01x = 1,667.07 × 684.03
4. Step 4: Simplify right side
   1,208.01x = 1,140,325.89
5. Step 5: Solve for x
   x = 1,140,325.89/1,208.01
6. Step 6: Final answer
   x = 943.97