Finding the Fourth Proportional to 2,178.18, 3,005.85 and 1,183.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178.18 : 3,005.85 = 1,183.47 : x
2. Step 2: Convert to fraction form
   2,178.18/3,005.85 = 1,183.47/x
3. Step 3: Cross multiply
   2,178.18x = 3,005.85 × 1,183.47
4. Step 4: Simplify right side
   2,178.18x = 3,557,333.30
5. Step 5: Solve for x
   x = 3,557,333.30/2,178.18
6. Step 6: Final answer
   x = 1,633.17