Finding the Fourth Proportional to 1,068.30, 1,601.91 and 327.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.30 : 1,601.91 = 327.69 : x
2. Step 2: Convert to fraction form
   1,068.30/1,601.91 = 327.69/x
3. Step 3: Cross multiply
   1,068.30x = 1,601.91 × 327.69
4. Step 4: Simplify right side
   1,068.30x = 524,929.89
5. Step 5: Solve for x
   x = 524,929.89/1,068.30
6. Step 6: Final answer
   x = 491.37