Finding the Fourth Proportional to 1,196.51, 1,651.31 and 699.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.51 : 1,651.31 = 699.31 : x
2. Step 2: Convert to fraction form
   1,196.51/1,651.31 = 699.31/x
3. Step 3: Cross multiply
   1,196.51x = 1,651.31 × 699.31
4. Step 4: Simplify right side
   1,196.51x = 1,154,777.60
5. Step 5: Solve for x
   x = 1,154,777.60/1,196.51
6. Step 6: Final answer
   x = 965.12