Finding the Fourth Proportional to 1,061.19, 1,591.33 and 330.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.19 : 1,591.33 = 330.83 : x
2. Step 2: Convert to fraction form
   1,061.19/1,591.33 = 330.83/x
3. Step 3: Cross multiply
   1,061.19x = 1,591.33 × 330.83
4. Step 4: Simplify right side
   1,061.19x = 526,450.92
5. Step 5: Solve for x
   x = 526,450.92/1,061.19
6. Step 6: Final answer
   x = 496.09