Finding the Fourth Proportional to 1,818.67, 2,726.37 and 830.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818.67 : 2,726.37 = 830.47 : x
2. Step 2: Convert to fraction form
   1,818.67/2,726.37 = 830.47/x
3. Step 3: Cross multiply
   1,818.67x = 2,726.37 × 830.47
4. Step 4: Simplify right side
   1,818.67x = 2,264,168.49
5. Step 5: Solve for x
   x = 2,264,168.49/1,818.67
6. Step 6: Final answer
   x = 1,244.96