Finding the Fourth Proportional to 2,085.27, 3,127.56 and 768.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.27 : 3,127.56 = 768.88 : x
2. Step 2: Convert to fraction form
   2,085.27/3,127.56 = 768.88/x
3. Step 3: Cross multiply
   2,085.27x = 3,127.56 × 768.88
4. Step 4: Simplify right side
   2,085.27x = 2,404,718.33
5. Step 5: Solve for x
   x = 2,404,718.33/2,085.27
6. Step 6: Final answer
   x = 1,153.19