Finding the Fourth Proportional to 2,123.69, 3,182.49 and 1,863.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.69 : 3,182.49 = 1,863.07 : x
2. Step 2: Convert to fraction form
   2,123.69/3,182.49 = 1,863.07/x
3. Step 3: Cross multiply
   2,123.69x = 3,182.49 × 1,863.07
4. Step 4: Simplify right side
   2,123.69x = 5,929,193.69
5. Step 5: Solve for x
   x = 5,929,193.69/2,123.69
6. Step 6: Final answer
   x = 2,791.94