Finding the Fourth Proportional to 1,083.43, 1,624.86 and 303.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083.43 : 1,624.86 = 303.38 : x
2. Step 2: Convert to fraction form
   1,083.43/1,624.86 = 303.38/x
3. Step 3: Cross multiply
   1,083.43x = 1,624.86 × 303.38
4. Step 4: Simplify right side
   1,083.43x = 492,954.09
5. Step 5: Solve for x
   x = 492,954.09/1,083.43
6. Step 6: Final answer
   x = 454.99