Finding the Fourth Proportional to 1,061.67, 1,592.49 and 321.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.67 : 1,592.49 = 321.27 : x
2. Step 2: Convert to fraction form
   1,061.67/1,592.49 = 321.27/x
3. Step 3: Cross multiply
   1,061.67x = 1,592.49 × 321.27
4. Step 4: Simplify right side
   1,061.67x = 511,627.93
5. Step 5: Solve for x
   x = 511,627.93/1,061.67
6. Step 6: Final answer
   x = 481.91