Finding the Fourth Proportional to 1,196.02, 1,794.17 and 318.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.02 : 1,794.17 = 318.56 : x
2. Step 2: Convert to fraction form
   1,196.02/1,794.17 = 318.56/x
3. Step 3: Cross multiply
   1,196.02x = 1,794.17 × 318.56
4. Step 4: Simplify right side
   1,196.02x = 571,552.71
5. Step 5: Solve for x
   x = 571,552.71/1,196.02
6. Step 6: Final answer
   x = 477.88