Finding the Fourth Proportional to 2,753.98, 4,131.54 and 805.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,753.98 : 4,131.54 = 805.96 : x
2. Step 2: Convert to fraction form
   2,753.98/4,131.54 = 805.96/x
3. Step 3: Cross multiply
   2,753.98x = 4,131.54 × 805.96
4. Step 4: Simplify right side
   2,753.98x = 3,329,855.98
5. Step 5: Solve for x
   x = 3,329,855.98/2,753.98
6. Step 6: Final answer
   x = 1,209.11