Finding the Fourth Proportional to 1,323.34, 1,984.86 and 336.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323.34 : 1,984.86 = 336.15 : x
2. Step 2: Convert to fraction form
   1,323.34/1,984.86 = 336.15/x
3. Step 3: Cross multiply
   1,323.34x = 1,984.86 × 336.15
4. Step 4: Simplify right side
   1,323.34x = 667,210.69
5. Step 5: Solve for x
   x = 667,210.69/1,323.34
6. Step 6: Final answer
   x = 504.19