Finding the Fourth Proportional to 2,624.18, 3,936.47 and 775.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.18 : 3,936.47 = 775.25 : x
2. Step 2: Convert to fraction form
   2,624.18/3,936.47 = 775.25/x
3. Step 3: Cross multiply
   2,624.18x = 3,936.47 × 775.25
4. Step 4: Simplify right side
   2,624.18x = 3,051,739.57
5. Step 5: Solve for x
   x = 3,051,739.57/2,624.18
6. Step 6: Final answer
   x = 1,162.93