Finding the Fourth Proportional to 2,227.72, 3,338.38 and 976.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.72 : 3,338.38 = 976.81 : x
2. Step 2: Convert to fraction form
   2,227.72/3,338.38 = 976.81/x
3. Step 3: Cross multiply
   2,227.72x = 3,338.38 × 976.81
4. Step 4: Simplify right side
   2,227.72x = 3,260,946.28
5. Step 5: Solve for x
   x = 3,260,946.28/2,227.72
6. Step 6: Final answer
   x = 1,463.80