Finding the Fourth Proportional to 1,222.73, 1,831.78 and 606.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222.73 : 1,831.78 = 606.10 : x
2. Step 2: Convert to fraction form
   1,222.73/1,831.78 = 606.10/x
3. Step 3: Cross multiply
   1,222.73x = 1,831.78 × 606.10
4. Step 4: Simplify right side
   1,222.73x = 1,110,235.02
5. Step 5: Solve for x
   x = 1,110,235.02/1,222.73
6. Step 6: Final answer
   x = 908.00