Finding the Fourth Proportional to 2,387.61, 3,296.43 and 1,641.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.61 : 3,296.43 = 1,641.33 : x
2. Step 2: Convert to fraction form
   2,387.61/3,296.43 = 1,641.33/x
3. Step 3: Cross multiply
   2,387.61x = 3,296.43 × 1,641.33
4. Step 4: Simplify right side
   2,387.61x = 5,410,529.45
5. Step 5: Solve for x
   x = 5,410,529.45/2,387.61
6. Step 6: Final answer
   x = 2,266.09