Finding the Fourth Proportional to 1,022.39, 1,410.37 and 602.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,022.39 : 1,410.37 = 602.54 : x
2. Step 2: Convert to fraction form
   1,022.39/1,410.37 = 602.54/x
3. Step 3: Cross multiply
   1,022.39x = 1,410.37 × 602.54
4. Step 4: Simplify right side
   1,022.39x = 849,804.34
5. Step 5: Solve for x
   x = 849,804.34/1,022.39
6. Step 6: Final answer
   x = 831.19