Finding the Fourth Proportional to 2,054.42, 3,083.20 and 805.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.42 : 3,083.20 = 805.22 : x
2. Step 2: Convert to fraction form
   2,054.42/3,083.20 = 805.22/x
3. Step 3: Cross multiply
   2,054.42x = 3,083.20 × 805.22
4. Step 4: Simplify right side
   2,054.42x = 2,482,654.30
5. Step 5: Solve for x
   x = 2,482,654.30/2,054.42
6. Step 6: Final answer
   x = 1,208.45