Finding the Fourth Proportional to 2,525.88, 3,789.18 and 770.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,525.88 : 3,789.18 = 770.52 : x
2. Step 2: Convert to fraction form
   2,525.88/3,789.18 = 770.52/x
3. Step 3: Cross multiply
   2,525.88x = 3,789.18 × 770.52
4. Step 4: Simplify right side
   2,525.88x = 2,919,638.97
5. Step 5: Solve for x
   x = 2,919,638.97/2,525.88
6. Step 6: Final answer
   x = 1,155.89