Finding the Fourth Proportional to 1,921.59, 2,651.94 and 1,082.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.59 : 2,651.94 = 1,082.39 : x
2. Step 2: Convert to fraction form
   1,921.59/2,651.94 = 1,082.39/x
3. Step 3: Cross multiply
   1,921.59x = 2,651.94 × 1,082.39
4. Step 4: Simplify right side
   1,921.59x = 2,870,414.66
5. Step 5: Solve for x
   x = 2,870,414.66/1,921.59
6. Step 6: Final answer
   x = 1,493.77