Finding the Fourth Proportional to 1,196.79, 1,651.07 and 864.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.79 : 1,651.07 = 864.49 : x
2. Step 2: Convert to fraction form
   1,196.79/1,651.07 = 864.49/x
3. Step 3: Cross multiply
   1,196.79x = 1,651.07 × 864.49
4. Step 4: Simplify right side
   1,196.79x = 1,427,333.50
5. Step 5: Solve for x
   x = 1,427,333.50/1,196.79
6. Step 6: Final answer
   x = 1,192.63