Finding the Fourth Proportional to 2,935.78, 4,406.10 and 1,293.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,935.78 : 4,406.10 = 1,293.10 : x
2. Step 2: Convert to fraction form
   2,935.78/4,406.10 = 1,293.10/x
3. Step 3: Cross multiply
   2,935.78x = 4,406.10 × 1,293.10
4. Step 4: Simplify right side
   2,935.78x = 5,697,527.91
5. Step 5: Solve for x
   x = 5,697,527.91/2,935.78
6. Step 6: Final answer
   x = 1,940.72