Finding the Fourth Proportional to 1,053.23, 1,579.89 and 322.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.23 : 1,579.89 = 322.82 : x
2. Step 2: Convert to fraction form
   1,053.23/1,579.89 = 322.82/x
3. Step 3: Cross multiply
   1,053.23x = 1,579.89 × 322.82
4. Step 4: Simplify right side
   1,053.23x = 510,012.19
5. Step 5: Solve for x
   x = 510,012.19/1,053.23
6. Step 6: Final answer
   x = 484.24