Finding the Fourth Proportional to 2,981.75, 4,473.15 and 1,227.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,981.75 : 4,473.15 = 1,227.72 : x
2. Step 2: Convert to fraction form
   2,981.75/4,473.15 = 1,227.72/x
3. Step 3: Cross multiply
   2,981.75x = 4,473.15 × 1,227.72
4. Step 4: Simplify right side
   2,981.75x = 5,491,775.72
5. Step 5: Solve for x
   x = 5,491,775.72/2,981.75
6. Step 6: Final answer
   x = 1,841.80