Finding the Fourth Proportional to 1,945.38, 2,919.23 and 775.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.38 : 2,919.23 = 775.94 : x
2. Step 2: Convert to fraction form
   1,945.38/2,919.23 = 775.94/x
3. Step 3: Cross multiply
   1,945.38x = 2,919.23 × 775.94
4. Step 4: Simplify right side
   1,945.38x = 2,265,150.74
5. Step 5: Solve for x
   x = 2,265,150.74/1,945.38
6. Step 6: Final answer
   x = 1,164.37