Finding the Fourth Proportional to 2,365.42, 3,260.28 and 1,618.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,365.42 : 3,260.28 = 1,618.09 : x
2. Step 2: Convert to fraction form
   2,365.42/3,260.28 = 1,618.09/x
3. Step 3: Cross multiply
   2,365.42x = 3,260.28 × 1,618.09
4. Step 4: Simplify right side
   2,365.42x = 5,275,426.47
5. Step 5: Solve for x
   x = 5,275,426.47/2,365.42
6. Step 6: Final answer
   x = 2,230.23