Finding the Fourth Proportional to 2,555.28, 3,527.82 and 1,672.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.28 : 3,527.82 = 1,672.56 : x
2. Step 2: Convert to fraction form
   2,555.28/3,527.82 = 1,672.56/x
3. Step 3: Cross multiply
   2,555.28x = 3,527.82 × 1,672.56
4. Step 4: Simplify right side
   2,555.28x = 5,900,490.62
5. Step 5: Solve for x
   x = 5,900,490.62/2,555.28
6. Step 6: Final answer
   x = 2,309.14