Finding the Fourth Proportional to 2,293.43, 3,439.82 and 906.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,293.43 : 3,439.82 = 906.41 : x
2. Step 2: Convert to fraction form
   2,293.43/3,439.82 = 906.41/x
3. Step 3: Cross multiply
   2,293.43x = 3,439.82 × 906.41
4. Step 4: Simplify right side
   2,293.43x = 3,117,865.52
5. Step 5: Solve for x
   x = 3,117,865.52/2,293.43
6. Step 6: Final answer
   x = 1,359.48