Finding the Fourth Proportional to 2,440.91, 3,657.92 and 1,399.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,440.91 : 3,657.92 = 1,399.34 : x
2. Step 2: Convert to fraction form
   2,440.91/3,657.92 = 1,399.34/x
3. Step 3: Cross multiply
   2,440.91x = 3,657.92 × 1,399.34
4. Step 4: Simplify right side
   2,440.91x = 5,118,673.77
5. Step 5: Solve for x
   x = 5,118,673.77/2,440.91
6. Step 6: Final answer
   x = 2,097.04