Finding the Fourth Proportional to 1,208.02, 1,667.42 and 710.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.02 : 1,667.42 = 710.68 : x
2. Step 2: Convert to fraction form
   1,208.02/1,667.42 = 710.68/x
3. Step 3: Cross multiply
   1,208.02x = 1,667.42 × 710.68
4. Step 4: Simplify right side
   1,208.02x = 1,185,002.05
5. Step 5: Solve for x
   x = 1,185,002.05/1,208.02
6. Step 6: Final answer
   x = 980.95