Finding the Fourth Proportional to 1,052.52, 1,578.71 and 322.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,052.52 : 1,578.71 = 322.10 : x
2. Step 2: Convert to fraction form
   1,052.52/1,578.71 = 322.10/x
3. Step 3: Cross multiply
   1,052.52x = 1,578.71 × 322.10
4. Step 4: Simplify right side
   1,052.52x = 508,500.88
5. Step 5: Solve for x
   x = 508,500.88/1,052.52
6. Step 6: Final answer
   x = 483.13