Finding the Fourth Proportional to 2,064.18, 3,082.92 and 1,868.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064.18 : 3,082.92 = 1,868.78 : x
2. Step 2: Convert to fraction form
   2,064.18/3,082.92 = 1,868.78/x
3. Step 3: Cross multiply
   2,064.18x = 3,082.92 × 1,868.78
4. Step 4: Simplify right side
   2,064.18x = 5,761,283.82
5. Step 5: Solve for x
   x = 5,761,283.82/2,064.18
6. Step 6: Final answer
   x = 2,791.08