Finding the Fourth Proportional to 2,258.58, 3,387.00 and 777.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.58 : 3,387.00 = 777.52 : x
2. Step 2: Convert to fraction form
   2,258.58/3,387.00 = 777.52/x
3. Step 3: Cross multiply
   2,258.58x = 3,387.00 × 777.52
4. Step 4: Simplify right side
   2,258.58x = 2,633,456.35
5. Step 5: Solve for x
   x = 2,633,456.35/2,258.58
6. Step 6: Final answer
   x = 1,165.98