Finding the Fourth Proportional to 3,928.37, 5,889.32 and 1,618.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,928.37 : 5,889.32 = 1,618.25 : x
2. Step 2: Convert to fraction form
   3,928.37/5,889.32 = 1,618.25/x
3. Step 3: Cross multiply
   3,928.37x = 5,889.32 × 1,618.25
4. Step 4: Simplify right side
   3,928.37x = 9,530,384.00
5. Step 5: Solve for x
   x = 9,530,384.00/3,928.37
6. Step 6: Final answer
   x = 2,426.04