Finding the Fourth Proportional to 404.37, 557.82 and 273.42

Step by Step Solution

1. Step 1: Write the proportion equation
   404.37 : 557.82 = 273.42 : x
2. Step 2: Convert to fraction form
   404.37/557.82 = 273.42/x
3. Step 3: Cross multiply
   404.37x = 557.82 × 273.42
4. Step 4: Simplify right side
   404.37x = 152,519.14
5. Step 5: Solve for x
   x = 152,519.14/404.37
6. Step 6: Final answer
   x = 377.18