Finding the Fourth Proportional to 2,155.56, 3,234.03 and 694.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.56 : 3,234.03 = 694.37 : x
2. Step 2: Convert to fraction form
   2,155.56/3,234.03 = 694.37/x
3. Step 3: Cross multiply
   2,155.56x = 3,234.03 × 694.37
4. Step 4: Simplify right side
   2,155.56x = 2,245,618.89
5. Step 5: Solve for x
   x = 2,245,618.89/2,155.56
6. Step 6: Final answer
   x = 1,041.78