Finding the Fourth Proportional to 2,622.89, 3,933.75 and 774.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.89 : 3,933.75 = 774.13 : x
2. Step 2: Convert to fraction form
   2,622.89/3,933.75 = 774.13/x
3. Step 3: Cross multiply
   2,622.89x = 3,933.75 × 774.13
4. Step 4: Simplify right side
   2,622.89x = 3,045,233.89
5. Step 5: Solve for x
   x = 3,045,233.89/2,622.89
6. Step 6: Final answer
   x = 1,161.02