Finding the Fourth Proportional to 2,764.53, 4,147.25 and 816.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,764.53 : 4,147.25 = 816.93 : x
2. Step 2: Convert to fraction form
   2,764.53/4,147.25 = 816.93/x
3. Step 3: Cross multiply
   2,764.53x = 4,147.25 × 816.93
4. Step 4: Simplify right side
   2,764.53x = 3,388,008.86
5. Step 5: Solve for x
   x = 3,388,008.86/2,764.53
6. Step 6: Final answer
   x = 1,225.53