Finding the Fourth Proportional to 2,384.82, 3,578.45 and 1,086.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,384.82 : 3,578.45 = 1,086.12 : x
2. Step 2: Convert to fraction form
   2,384.82/3,578.45 = 1,086.12/x
3. Step 3: Cross multiply
   2,384.82x = 3,578.45 × 1,086.12
4. Step 4: Simplify right side
   2,384.82x = 3,886,620.68
5. Step 5: Solve for x
   x = 3,886,620.68/2,384.82
6. Step 6: Final answer
   x = 1,629.73