Finding the Fourth Proportional to 1,672.82, 2,307.03 and 1,082.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.82 : 2,307.03 = 1,082.78 : x
2. Step 2: Convert to fraction form
   1,672.82/2,307.03 = 1,082.78/x
3. Step 3: Cross multiply
   1,672.82x = 2,307.03 × 1,082.78
4. Step 4: Simplify right side
   1,672.82x = 2,498,005.94
5. Step 5: Solve for x
   x = 2,498,005.94/1,672.82
6. Step 6: Final answer
   x = 1,493.29