Finding the Fourth Proportional to 1,105.52, 1,658.24 and 336

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.52 : 1,658.24 = 336 : x
2. Step 2: Convert to fraction form
   1,105.52/1,658.24 = 336/x
3. Step 3: Cross multiply
   1,105.52x = 1,658.24 × 336
4. Step 4: Simplify right side
   1,105.52x = 557,168.64
5. Step 5: Solve for x
   x = 557,168.64/1,105.52
6. Step 6: Final answer
   x = 503.99