Finding the Fourth Proportional to 2,417.85, 3,627.12 and 774.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,417.85 : 3,627.12 = 774.42 : x
2. Step 2: Convert to fraction form
   2,417.85/3,627.12 = 774.42/x
3. Step 3: Cross multiply
   2,417.85x = 3,627.12 × 774.42
4. Step 4: Simplify right side
   2,417.85x = 2,808,914.27
5. Step 5: Solve for x
   x = 2,808,914.27/2,417.85
6. Step 6: Final answer
   x = 1,161.74