Finding the Fourth Proportional to 2,229.16, 3,340.38 and 930.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.16 : 3,340.38 = 930.28 : x
2. Step 2: Convert to fraction form
   2,229.16/3,340.38 = 930.28/x
3. Step 3: Cross multiply
   2,229.16x = 3,340.38 × 930.28
4. Step 4: Simplify right side
   2,229.16x = 3,107,488.71
5. Step 5: Solve for x
   x = 3,107,488.71/2,229.16
6. Step 6: Final answer
   x = 1,394.02