Finding the Fourth Proportional to 1,399.70, 2,096.61 and 935.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399.70 : 2,096.61 = 935.97 : x
2. Step 2: Convert to fraction form
   1,399.70/2,096.61 = 935.97/x
3. Step 3: Cross multiply
   1,399.70x = 2,096.61 × 935.97
4. Step 4: Simplify right side
   1,399.70x = 1,962,364.06
5. Step 5: Solve for x
   x = 1,962,364.06/1,399.70
6. Step 6: Final answer
   x = 1,401.99