Finding the Fourth Proportional to 2,062.88, 3,092.49 and 764.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.88 : 3,092.49 = 764.05 : x
2. Step 2: Convert to fraction form
   2,062.88/3,092.49 = 764.05/x
3. Step 3: Cross multiply
   2,062.88x = 3,092.49 × 764.05
4. Step 4: Simplify right side
   2,062.88x = 2,362,816.98
5. Step 5: Solve for x
   x = 2,362,816.98/2,062.88
6. Step 6: Final answer
   x = 1,145.40