Finding the Fourth Proportional to 3,575.31, 5,355.03 and 2,321.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,575.31 : 5,355.03 = 2,321.49 : x
2. Step 2: Convert to fraction form
   3,575.31/5,355.03 = 2,321.49/x
3. Step 3: Cross multiply
   3,575.31x = 5,355.03 × 2,321.49
4. Step 4: Simplify right side
   3,575.31x = 12,431,648.59
5. Step 5: Solve for x
   x = 12,431,648.59/3,575.31
6. Step 6: Final answer
   x = 3,477.08