Finding the Fourth Proportional to 2,710.12, 4,065.20 and 762.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,710.12 : 4,065.20 = 762.52 : x
2. Step 2: Convert to fraction form
   2,710.12/4,065.20 = 762.52/x
3. Step 3: Cross multiply
   2,710.12x = 4,065.20 × 762.52
4. Step 4: Simplify right side
   2,710.12x = 3,099,796.30
5. Step 5: Solve for x
   x = 3,099,796.30/2,710.12
6. Step 6: Final answer
   x = 1,143.79