Finding the Fourth Proportional to 1,224.27, 1,836.61 and 608.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224.27 : 1,836.61 = 608.00 : x
2. Step 2: Convert to fraction form
   1,224.27/1,836.61 = 608.00/x
3. Step 3: Cross multiply
   1,224.27x = 1,836.61 × 608.00
4. Step 4: Simplify right side
   1,224.27x = 1,116,648.18
5. Step 5: Solve for x
   x = 1,116,648.18/1,224.27
6. Step 6: Final answer
   x = 912.09