Finding the Fourth Proportional to 2,536.50, 3,805.47 and 805.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,536.50 : 3,805.47 = 805.17 : x
2. Step 2: Convert to fraction form
   2,536.50/3,805.47 = 805.17/x
3. Step 3: Cross multiply
   2,536.50x = 3,805.47 × 805.17
4. Step 4: Simplify right side
   2,536.50x = 3,064,050.28
5. Step 5: Solve for x
   x = 3,064,050.28/2,536.50
6. Step 6: Final answer
   x = 1,207.98