Finding the Fourth Proportional to 2,667.28, 4,000.02 and 935.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.28 : 4,000.02 = 935.68 : x
2. Step 2: Convert to fraction form
   2,667.28/4,000.02 = 935.68/x
3. Step 3: Cross multiply
   2,667.28x = 4,000.02 × 935.68
4. Step 4: Simplify right side
   2,667.28x = 3,742,738.71
5. Step 5: Solve for x
   x = 3,742,738.71/2,667.28
6. Step 6: Final answer
   x = 1,403.20