Finding the Fourth Proportional to 1,206.93, 1,665.27 and 709.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,206.93 : 1,665.27 = 709.59 : x
2. Step 2: Convert to fraction form
   1,206.93/1,665.27 = 709.59/x
3. Step 3: Cross multiply
   1,206.93x = 1,665.27 × 709.59
4. Step 4: Simplify right side
   1,206.93x = 1,181,658.94
5. Step 5: Solve for x
   x = 1,181,658.94/1,206.93
6. Step 6: Final answer
   x = 979.06