Finding the Fourth Proportional to 2,665.36, 3,997.76 and 934.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.36 : 3,997.76 = 934.08 : x
2. Step 2: Convert to fraction form
   2,665.36/3,997.76 = 934.08/x
3. Step 3: Cross multiply
   2,665.36x = 3,997.76 × 934.08
4. Step 4: Simplify right side
   2,665.36x = 3,734,227.66
5. Step 5: Solve for x
   x = 3,734,227.66/2,665.36
6. Step 6: Final answer
   x = 1,401.02