Finding the Fourth Proportional to 2,091.42, 3,136.14 and 774.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.42 : 3,136.14 = 774.27 : x
2. Step 2: Convert to fraction form
   2,091.42/3,136.14 = 774.27/x
3. Step 3: Cross multiply
   2,091.42x = 3,136.14 × 774.27
4. Step 4: Simplify right side
   2,091.42x = 2,428,219.12
5. Step 5: Solve for x
   x = 2,428,219.12/2,091.42
6. Step 6: Final answer
   x = 1,161.04