Finding the Fourth Proportional to 2,654.52, 3,981.72 and 805.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.52 : 3,981.72 = 805.68 : x
2. Step 2: Convert to fraction form
   2,654.52/3,981.72 = 805.68/x
3. Step 3: Cross multiply
   2,654.52x = 3,981.72 × 805.68
4. Step 4: Simplify right side
   2,654.52x = 3,207,992.17
5. Step 5: Solve for x
   x = 3,207,992.17/2,654.52
6. Step 6: Final answer
   x = 1,208.50