Finding the Fourth Proportional to 1,022.51, 1,410.81 and 602.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,022.51 : 1,410.81 = 602.83 : x
2. Step 2: Convert to fraction form
   1,022.51/1,410.81 = 602.83/x
3. Step 3: Cross multiply
   1,022.51x = 1,410.81 × 602.83
4. Step 4: Simplify right side
   1,022.51x = 850,478.59
5. Step 5: Solve for x
   x = 850,478.59/1,022.51
6. Step 6: Final answer
   x = 831.76