Finding the Fourth Proportional to 2,576.37, 3,555.41 and 1,397.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576.37 : 3,555.41 = 1,397.43 : x
2. Step 2: Convert to fraction form
   2,576.37/3,555.41 = 1,397.43/x
3. Step 3: Cross multiply
   2,576.37x = 3,555.41 × 1,397.43
4. Step 4: Simplify right side
   2,576.37x = 4,968,429.61
5. Step 5: Solve for x
   x = 4,968,429.61/2,576.37
6. Step 6: Final answer
   x = 1,928.46