Finding the Fourth Proportional to 2,009.40, 3,013.25 and 913.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.40 : 3,013.25 = 913.47 : x
2. Step 2: Convert to fraction form
   2,009.40/3,013.25 = 913.47/x
3. Step 3: Cross multiply
   2,009.40x = 3,013.25 × 913.47
4. Step 4: Simplify right side
   2,009.40x = 2,752,508.91
5. Step 5: Solve for x
   x = 2,752,508.91/2,009.40
6. Step 6: Final answer
   x = 1,369.82