Finding the Fourth Proportional to 3,621.73, 5,435.34 and 2,388.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,621.73 : 5,435.34 = 2,388.73 : x
2. Step 2: Convert to fraction form
   3,621.73/5,435.34 = 2,388.73/x
3. Step 3: Cross multiply
   3,621.73x = 5,435.34 × 2,388.73
4. Step 4: Simplify right side
   3,621.73x = 12,983,559.72
5. Step 5: Solve for x
   x = 12,983,559.72/3,621.73
6. Step 6: Final answer
   x = 3,584.91