Finding the Fourth Proportional to 2,387.56, 3,576.57 and 1,645.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.56 : 3,576.57 = 1,645.33 : x
2. Step 2: Convert to fraction form
   2,387.56/3,576.57 = 1,645.33/x
3. Step 3: Cross multiply
   2,387.56x = 3,576.57 × 1,645.33
4. Step 4: Simplify right side
   2,387.56x = 5,884,637.92
5. Step 5: Solve for x
   x = 5,884,637.92/2,387.56
6. Step 6: Final answer
   x = 2,464.71