Finding the Fourth Proportional to 2,336.72, 3,504.96 and 693.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,336.72 : 3,504.96 = 693.28 : x
2. Step 2: Convert to fraction form
   2,336.72/3,504.96 = 693.28/x
3. Step 3: Cross multiply
   2,336.72x = 3,504.96 × 693.28
4. Step 4: Simplify right side
   2,336.72x = 2,429,918.67
5. Step 5: Solve for x
   x = 2,429,918.67/2,336.72
6. Step 6: Final answer
   x = 1,039.88