Finding the Fourth Proportional to 2,868.38, 3,959.22 and 1,873.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.38 : 3,959.22 = 1,873.82 : x
2. Step 2: Convert to fraction form
   2,868.38/3,959.22 = 1,873.82/x
3. Step 3: Cross multiply
   2,868.38x = 3,959.22 × 1,873.82
4. Step 4: Simplify right side
   2,868.38x = 7,418,865.62
5. Step 5: Solve for x
   x = 7,418,865.62/2,868.38
6. Step 6: Final answer
   x = 2,586.43