Finding the Fourth Proportional to 1,208.03, 1,667.03 and 684.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.03 : 1,667.03 = 684.07 : x
2. Step 2: Convert to fraction form
   1,208.03/1,667.03 = 684.07/x
3. Step 3: Cross multiply
   1,208.03x = 1,667.03 × 684.07
4. Step 4: Simplify right side
   1,208.03x = 1,140,365.21
5. Step 5: Solve for x
   x = 1,140,365.21/1,208.03
6. Step 6: Final answer
   x = 943.99