Finding the Fourth Proportional to 1,022.24, 1,410.72 and 602.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,022.24 : 1,410.72 = 602.62 : x
2. Step 2: Convert to fraction form
   1,022.24/1,410.72 = 602.62/x
3. Step 3: Cross multiply
   1,022.24x = 1,410.72 × 602.62
4. Step 4: Simplify right side
   1,022.24x = 850,128.09
5. Step 5: Solve for x
   x = 850,128.09/1,022.24
6. Step 6: Final answer
   x = 831.63