Finding the Fourth Proportional to 2,624.56, 3,936.89 and 775.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.56 : 3,936.89 = 775.71 : x
2. Step 2: Convert to fraction form
   2,624.56/3,936.89 = 775.71/x
3. Step 3: Cross multiply
   2,624.56x = 3,936.89 × 775.71
4. Step 4: Simplify right side
   2,624.56x = 3,053,886.88
5. Step 5: Solve for x
   x = 3,053,886.88/2,624.56
6. Step 6: Final answer
   x = 1,163.58