Finding the Fourth Proportional to 2,254.77, 3,380.54 and 773.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,254.77 : 3,380.54 = 773.69 : x
2. Step 2: Convert to fraction form
   2,254.77/3,380.54 = 773.69/x
3. Step 3: Cross multiply
   2,254.77x = 3,380.54 × 773.69
4. Step 4: Simplify right side
   2,254.77x = 2,615,469.22
5. Step 5: Solve for x
   x = 2,615,469.22/2,254.77
6. Step 6: Final answer
   x = 1,159.97