Finding the Fourth Proportional to 2,227.54, 3,342.45 and 912.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.54 : 3,342.45 = 912.25 : x
2. Step 2: Convert to fraction form
   2,227.54/3,342.45 = 912.25/x
3. Step 3: Cross multiply
   2,227.54x = 3,342.45 × 912.25
4. Step 4: Simplify right side
   2,227.54x = 3,049,150.01
5. Step 5: Solve for x
   x = 3,049,150.01/2,227.54
6. Step 6: Final answer
   x = 1,368.84