Finding the Fourth Proportional to 3,400.92, 5,100.79 and 935.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,400.92 : 5,100.79 = 935.15 : x
2. Step 2: Convert to fraction form
   3,400.92/5,100.79 = 935.15/x
3. Step 3: Cross multiply
   3,400.92x = 5,100.79 × 935.15
4. Step 4: Simplify right side
   3,400.92x = 4,770,017.69
5. Step 5: Solve for x
   x = 4,770,017.69/3,400.92
6. Step 6: Final answer
   x = 1,402.57