Finding the Fourth Proportional to 2,062.72, 3,093.52 and 764

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.72 : 3,093.52 = 764 : x
2. Step 2: Convert to fraction form
   2,062.72/3,093.52 = 764/x
3. Step 3: Cross multiply
   2,062.72x = 3,093.52 × 764
4. Step 4: Simplify right side
   2,062.72x = 2,363,449.28
5. Step 5: Solve for x
   x = 2,363,449.28/2,062.72
6. Step 6: Final answer
   x = 1,145.79