Finding the Fourth Proportional to 867.88, 1,196.52 and 709.96

Step by Step Solution

1. Step 1: Write the proportion equation
   867.88 : 1,196.52 = 709.96 : x
2. Step 2: Convert to fraction form
   867.88/1,196.52 = 709.96/x
3. Step 3: Cross multiply
   867.88x = 1,196.52 × 709.96
4. Step 4: Simplify right side
   867.88x = 849,481.34
5. Step 5: Solve for x
   x = 849,481.34/867.88
6. Step 6: Final answer
   x = 978.80