Finding the Fourth Proportional to 1,014.59, 1,522.17 and 389.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014.59 : 1,522.17 = 389.81 : x
2. Step 2: Convert to fraction form
   1,014.59/1,522.17 = 389.81/x
3. Step 3: Cross multiply
   1,014.59x = 1,522.17 × 389.81
4. Step 4: Simplify right side
   1,014.59x = 593,357.09
5. Step 5: Solve for x
   x = 593,357.09/1,014.59
6. Step 6: Final answer
   x = 584.82