Finding the Fourth Proportional to 1,015.89, 1,523.94 and 322.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.89 : 1,523.94 = 322.62 : x
2. Step 2: Convert to fraction form
   1,015.89/1,523.94 = 322.62/x
3. Step 3: Cross multiply
   1,015.89x = 1,523.94 × 322.62
4. Step 4: Simplify right side
   1,015.89x = 491,653.52
5. Step 5: Solve for x
   x = 491,653.52/1,015.89
6. Step 6: Final answer
   x = 483.96