Finding the Fourth Proportional to 2,073.94, 3,111.05 and 775.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.94 : 3,111.05 = 775.38 : x
2. Step 2: Convert to fraction form
   2,073.94/3,111.05 = 775.38/x
3. Step 3: Cross multiply
   2,073.94x = 3,111.05 × 775.38
4. Step 4: Simplify right side
   2,073.94x = 2,412,245.95
5. Step 5: Solve for x
   x = 2,412,245.95/2,073.94
6. Step 6: Final answer
   x = 1,163.12