Finding the Fourth Proportional to 1,162.16, 1,742.28 and 797.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.16 : 1,742.28 = 797.12 : x
2. Step 2: Convert to fraction form
   1,162.16/1,742.28 = 797.12/x
3. Step 3: Cross multiply
   1,162.16x = 1,742.28 × 797.12
4. Step 4: Simplify right side
   1,162.16x = 1,388,806.23
5. Step 5: Solve for x
   x = 1,388,806.23/1,162.16
6. Step 6: Final answer
   x = 1,195.02