Finding the Fourth Proportional to 1,921.30, 2,651.36 and 1,082.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.30 : 2,651.36 = 1,082.00 : x
2. Step 2: Convert to fraction form
   1,921.30/2,651.36 = 1,082.00/x
3. Step 3: Cross multiply
   1,921.30x = 2,651.36 × 1,082.00
4. Step 4: Simplify right side
   1,921.30x = 2,868,752.85
5. Step 5: Solve for x
   x = 2,868,752.85/1,921.30
6. Step 6: Final answer
   x = 1,493.14