Finding the Fourth Proportional to 1,208.02, 1,667.10 and 684.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.02 : 1,667.10 = 684.08 : x
2. Step 2: Convert to fraction form
   1,208.02/1,667.10 = 684.08/x
3. Step 3: Cross multiply
   1,208.02x = 1,667.10 × 684.08
4. Step 4: Simplify right side
   1,208.02x = 1,140,429.77
5. Step 5: Solve for x
   x = 1,140,429.77/1,208.02
6. Step 6: Final answer
   x = 944.05