Finding the Fourth Proportional to 2,046.54, 3,071.23 and 813.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,046.54 : 3,071.23 = 813.83 : x
2. Step 2: Convert to fraction form
   2,046.54/3,071.23 = 813.83/x
3. Step 3: Cross multiply
   2,046.54x = 3,071.23 × 813.83
4. Step 4: Simplify right side
   2,046.54x = 2,499,464.75
5. Step 5: Solve for x
   x = 2,499,464.75/2,046.54
6. Step 6: Final answer
   x = 1,221.31