Finding the Fourth Proportional to 1,818.40, 2,726.12 and 844.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818.40 : 2,726.12 = 844.24 : x
2. Step 2: Convert to fraction form
   1,818.40/2,726.12 = 844.24/x
3. Step 3: Cross multiply
   1,818.40x = 2,726.12 × 844.24
4. Step 4: Simplify right side
   1,818.40x = 2,301,499.55
5. Step 5: Solve for x
   x = 2,301,499.55/1,818.40
6. Step 6: Final answer
   x = 1,265.67