Finding the Fourth Proportional to 1,818.72, 2,726.16 and 844

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818.72 : 2,726.16 = 844 : x
2. Step 2: Convert to fraction form
   1,818.72/2,726.16 = 844/x
3. Step 3: Cross multiply
   1,818.72x = 2,726.16 × 844
4. Step 4: Simplify right side
   1,818.72x = 2,300,879.04
5. Step 5: Solve for x
   x = 2,300,879.04/1,818.72
6. Step 6: Final answer
   x = 1,265.11