Finding the Fourth Proportional to 2,418.71, 3,627.06 and 774.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,418.71 : 3,627.06 = 774.82 : x
2. Step 2: Convert to fraction form
   2,418.71/3,627.06 = 774.82/x
3. Step 3: Cross multiply
   2,418.71x = 3,627.06 × 774.82
4. Step 4: Simplify right side
   2,418.71x = 2,810,318.63
5. Step 5: Solve for x
   x = 2,810,318.63/2,418.71
6. Step 6: Final answer
   x = 1,161.91