Finding the Fourth Proportional to 2,764.50, 4,145.94 and 816.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,764.50 : 4,145.94 = 816.24 : x
2. Step 2: Convert to fraction form
   2,764.50/4,145.94 = 816.24/x
3. Step 3: Cross multiply
   2,764.50x = 4,145.94 × 816.24
4. Step 4: Simplify right side
   2,764.50x = 3,384,082.07
5. Step 5: Solve for x
   x = 3,384,082.07/2,764.50
6. Step 6: Final answer
   x = 1,224.12