Finding the Fourth Proportional to 1,082.45, 1,616.35 and 949.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082.45 : 1,616.35 = 949.69 : x
2. Step 2: Convert to fraction form
   1,082.45/1,616.35 = 949.69/x
3. Step 3: Cross multiply
   1,082.45x = 1,616.35 × 949.69
4. Step 4: Simplify right side
   1,082.45x = 1,535,031.43
5. Step 5: Solve for x
   x = 1,535,031.43/1,082.45
6. Step 6: Final answer
   x = 1,418.11