Finding the Fourth Proportional to 2,076.81, 3,114.46 and 760.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.81 : 3,114.46 = 760.13 : x
2. Step 2: Convert to fraction form
   2,076.81/3,114.46 = 760.13/x
3. Step 3: Cross multiply
   2,076.81x = 3,114.46 × 760.13
4. Step 4: Simplify right side
   2,076.81x = 2,367,410.12
5. Step 5: Solve for x
   x = 2,367,410.12/2,076.81
6. Step 6: Final answer
   x = 1,139.92