Finding the Fourth Proportional to 2,578.38, 3,556.86 and 1,632.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.38 : 3,556.86 = 1,632.60 : x
2. Step 2: Convert to fraction form
   2,578.38/3,556.86 = 1,632.60/x
3. Step 3: Cross multiply
   2,578.38x = 3,556.86 × 1,632.60
4. Step 4: Simplify right side
   2,578.38x = 5,806,929.64
5. Step 5: Solve for x
   x = 5,806,929.64/2,578.38
6. Step 6: Final answer
   x = 2,252.16