Finding the Fourth Proportional to 1,143.83, 1,715.71 and 322.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,143.83 : 1,715.71 = 322.09 : x
2. Step 2: Convert to fraction form
   1,143.83/1,715.71 = 322.09/x
3. Step 3: Cross multiply
   1,143.83x = 1,715.71 × 322.09
4. Step 4: Simplify right side
   1,143.83x = 552,613.03
5. Step 5: Solve for x
   x = 552,613.03/1,143.83
6. Step 6: Final answer
   x = 483.13