Finding the Fourth Proportional to 1,578.69, 2,175.96 and 1,446.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578.69 : 2,175.96 = 1,446.32 : x
2. Step 2: Convert to fraction form
   1,578.69/2,175.96 = 1,446.32/x
3. Step 3: Cross multiply
   1,578.69x = 2,175.96 × 1,446.32
4. Step 4: Simplify right side
   1,578.69x = 3,147,145.33
5. Step 5: Solve for x
   x = 3,147,145.33/1,578.69
6. Step 6: Final answer
   x = 1,993.52