Finding the Fourth Proportional to 2,688.55, 4,033.34 and 933.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.55 : 4,033.34 = 933.49 : x
2. Step 2: Convert to fraction form
   2,688.55/4,033.34 = 933.49/x
3. Step 3: Cross multiply
   2,688.55x = 4,033.34 × 933.49
4. Step 4: Simplify right side
   2,688.55x = 3,765,057.72
5. Step 5: Solve for x
   x = 3,765,057.72/2,688.55
6. Step 6: Final answer
   x = 1,400.40