Finding the Fourth Proportional to 1,196.18, 1,792.44 and 546.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.18 : 1,792.44 = 546.15 : x
2. Step 2: Convert to fraction form
   1,196.18/1,792.44 = 546.15/x
3. Step 3: Cross multiply
   1,196.18x = 1,792.44 × 546.15
4. Step 4: Simplify right side
   1,196.18x = 978,938.38
5. Step 5: Solve for x
   x = 978,938.38/1,196.18
6. Step 6: Final answer
   x = 818.39