Finding the Fourth Proportional to 2,623.41, 3,935.54 and 774.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,623.41 : 3,935.54 = 774.71 : x
2. Step 2: Convert to fraction form
   2,623.41/3,935.54 = 774.71/x
3. Step 3: Cross multiply
   2,623.41x = 3,935.54 × 774.71
4. Step 4: Simplify right side
   2,623.41x = 3,048,900.72
5. Step 5: Solve for x
   x = 3,048,900.72/2,623.41
6. Step 6: Final answer
   x = 1,162.19