Finding the Fourth Proportional to 2,606.48, 3,908.30 and 940.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.48 : 3,908.30 = 940.38 : x
2. Step 2: Convert to fraction form
   2,606.48/3,908.30 = 940.38/x
3. Step 3: Cross multiply
   2,606.48x = 3,908.30 × 940.38
4. Step 4: Simplify right side
   2,606.48x = 3,675,287.15
5. Step 5: Solve for x
   x = 3,675,287.15/2,606.48
6. Step 6: Final answer
   x = 1,410.06