Finding the Fourth Proportional to 1,945.38, 2,919.33 and 849.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.38 : 2,919.33 = 849.81 : x
2. Step 2: Convert to fraction form
   1,945.38/2,919.33 = 849.81/x
3. Step 3: Cross multiply
   1,945.38x = 2,919.33 × 849.81
4. Step 4: Simplify right side
   1,945.38x = 2,480,875.83
5. Step 5: Solve for x
   x = 2,480,875.83/1,945.38
6. Step 6: Final answer
   x = 1,275.27