Finding the Fourth Proportional to 1,868.07, 2,577.90 and 1,082.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868.07 : 2,577.90 = 1,082.10 : x
2. Step 2: Convert to fraction form
   1,868.07/2,577.90 = 1,082.10/x
3. Step 3: Cross multiply
   1,868.07x = 2,577.90 × 1,082.10
4. Step 4: Simplify right side
   1,868.07x = 2,789,545.59
5. Step 5: Solve for x
   x = 2,789,545.59/1,868.07
6. Step 6: Final answer
   x = 1,493.28