Finding the Fourth Proportional to 2,080.88, 3,119.46 and 764.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.88 : 3,119.46 = 764.33 : x
2. Step 2: Convert to fraction form
   2,080.88/3,119.46 = 764.33/x
3. Step 3: Cross multiply
   2,080.88x = 3,119.46 × 764.33
4. Step 4: Simplify right side
   2,080.88x = 2,384,281.26
5. Step 5: Solve for x
   x = 2,384,281.26/2,080.88
6. Step 6: Final answer
   x = 1,145.81