Finding the Fourth Proportional to 2,626.21, 3,624.51 and 1,578.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,626.21 : 3,624.51 = 1,578.48 : x
2. Step 2: Convert to fraction form
   2,626.21/3,624.51 = 1,578.48/x
3. Step 3: Cross multiply
   2,626.21x = 3,624.51 × 1,578.48
4. Step 4: Simplify right side
   2,626.21x = 5,721,216.54
5. Step 5: Solve for x
   x = 5,721,216.54/2,626.21
6. Step 6: Final answer
   x = 2,178.51