Finding the Fourth Proportional to 1,224.73, 1,839.58 and 1,081.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224.73 : 1,839.58 = 1,081.72 : x
2. Step 2: Convert to fraction form
   1,224.73/1,839.58 = 1,081.72/x
3. Step 3: Cross multiply
   1,224.73x = 1,839.58 × 1,081.72
4. Step 4: Simplify right side
   1,224.73x = 1,989,910.48
5. Step 5: Solve for x
   x = 1,989,910.48/1,224.73
6. Step 6: Final answer
   x = 1,624.77