Finding the Fourth Proportional to 1,208.10, 1,667.27 and 677.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.10 : 1,667.27 = 677.03 : x
2. Step 2: Convert to fraction form
   1,208.10/1,667.27 = 677.03/x
3. Step 3: Cross multiply
   1,208.10x = 1,667.27 × 677.03
4. Step 4: Simplify right side
   1,208.10x = 1,128,788.42
5. Step 5: Solve for x
   x = 1,128,788.42/1,208.10
6. Step 6: Final answer
   x = 934.35