Finding the Fourth Proportional to 1,208.48, 1,667.57 and 710.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.48 : 1,667.57 = 710.94 : x
2. Step 2: Convert to fraction form
   1,208.48/1,667.57 = 710.94/x
3. Step 3: Cross multiply
   1,208.48x = 1,667.57 × 710.94
4. Step 4: Simplify right side
   1,208.48x = 1,185,538.66
5. Step 5: Solve for x
   x = 1,185,538.66/1,208.48
6. Step 6: Final answer
   x = 981.02