Finding the Fourth Proportional to 1,063.81, 1,595.72 and 323.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,063.81 : 1,595.72 = 323.43 : x
2. Step 2: Convert to fraction form
   1,063.81/1,595.72 = 323.43/x
3. Step 3: Cross multiply
   1,063.81x = 1,595.72 × 323.43
4. Step 4: Simplify right side
   1,063.81x = 516,097.33
5. Step 5: Solve for x
   x = 516,097.33/1,063.81
6. Step 6: Final answer
   x = 485.14