Finding the Fourth Proportional to 2,983.76, 4,476.15 and 1,229.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,983.76 : 4,476.15 = 1,229.72 : x
2. Step 2: Convert to fraction form
   2,983.76/4,476.15 = 1,229.72/x
3. Step 3: Cross multiply
   2,983.76x = 4,476.15 × 1,229.72
4. Step 4: Simplify right side
   2,983.76x = 5,504,388.80
5. Step 5: Solve for x
   x = 5,504,388.80/2,983.76
6. Step 6: Final answer
   x = 1,844.78