Finding the Fourth Proportional to 314.82, 434.52 and 196.83

Step by Step Solution

1. Step 1: Write the proportion equation
   314.82 : 434.52 = 196.83 : x
2. Step 2: Convert to fraction form
   314.82/434.52 = 196.83/x
3. Step 3: Cross multiply
   314.82x = 434.52 × 196.83
4. Step 4: Simplify right side
   314.82x = 85,526.57
5. Step 5: Solve for x
   x = 85,526.57/314.82
6. Step 6: Final answer
   x = 271.67