Finding the Fourth Proportional to 1,103.54, 1,655.15 and 323.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.54 : 1,655.15 = 323.34 : x
2. Step 2: Convert to fraction form
   1,103.54/1,655.15 = 323.34/x
3. Step 3: Cross multiply
   1,103.54x = 1,655.15 × 323.34
4. Step 4: Simplify right side
   1,103.54x = 535,176.20
5. Step 5: Solve for x
   x = 535,176.20/1,103.54
6. Step 6: Final answer
   x = 484.96