Finding the Fourth Proportional to 2,253.52, 3,380.89 and 693.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.52 : 3,380.89 = 693.49 : x
2. Step 2: Convert to fraction form
   2,253.52/3,380.89 = 693.49/x
3. Step 3: Cross multiply
   2,253.52x = 3,380.89 × 693.49
4. Step 4: Simplify right side
   2,253.52x = 2,344,613.41
5. Step 5: Solve for x
   x = 2,344,613.41/2,253.52
6. Step 6: Final answer
   x = 1,040.42