Finding the Fourth Proportional to 2,012.27, 2,777.28 and 1,161.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.27 : 2,777.28 = 1,161.37 : x
2. Step 2: Convert to fraction form
   2,012.27/2,777.28 = 1,161.37/x
3. Step 3: Cross multiply
   2,012.27x = 2,777.28 × 1,161.37
4. Step 4: Simplify right side
   2,012.27x = 3,225,449.67
5. Step 5: Solve for x
   x = 3,225,449.67/2,012.27
6. Step 6: Final answer
   x = 1,602.90