Finding the Fourth Proportional to 2,885.59, 4,327.95 and 805.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885.59 : 4,327.95 = 805.38 : x
2. Step 2: Convert to fraction form
   2,885.59/4,327.95 = 805.38/x
3. Step 3: Cross multiply
   2,885.59x = 4,327.95 × 805.38
4. Step 4: Simplify right side
   2,885.59x = 3,485,644.37
5. Step 5: Solve for x
   x = 3,485,644.37/2,885.59
6. Step 6: Final answer
   x = 1,207.95