Finding the Fourth Proportional to 2,860.52, 4,291.52 and 808.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,860.52 : 4,291.52 = 808.52 : x
2. Step 2: Convert to fraction form
   2,860.52/4,291.52 = 808.52/x
3. Step 3: Cross multiply
   2,860.52x = 4,291.52 × 808.52
4. Step 4: Simplify right side
   2,860.52x = 3,469,779.75
5. Step 5: Solve for x
   x = 3,469,779.75/2,860.52
6. Step 6: Final answer
   x = 1,212.99