Finding the Fourth Proportional to 1,196.28, 1,791.18 and 762.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.28 : 1,791.18 = 762.12 : x
2. Step 2: Convert to fraction form
   1,196.28/1,791.18 = 762.12/x
3. Step 3: Cross multiply
   1,196.28x = 1,791.18 × 762.12
4. Step 4: Simplify right side
   1,196.28x = 1,365,094.10
5. Step 5: Solve for x
   x = 1,365,094.10/1,196.28
6. Step 6: Final answer
   x = 1,141.12