Finding the Fourth Proportional to 3,442.28, 5,155.86 and 2,573.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,442.28 : 5,155.86 = 2,573.96 : x
2. Step 2: Convert to fraction form
   3,442.28/5,155.86 = 2,573.96/x
3. Step 3: Cross multiply
   3,442.28x = 5,155.86 × 2,573.96
4. Step 4: Simplify right side
   3,442.28x = 13,270,977.41
5. Step 5: Solve for x
   x = 13,270,977.41/3,442.28
6. Step 6: Final answer
   x = 3,855.29