Finding the Fourth Proportional to 2,647.95, 3,651.98 and 1,986.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.95 : 3,651.98 = 1,986.27 : x
2. Step 2: Convert to fraction form
   2,647.95/3,651.98 = 1,986.27/x
3. Step 3: Cross multiply
   2,647.95x = 3,651.98 × 1,986.27
4. Step 4: Simplify right side
   2,647.95x = 7,253,808.38
5. Step 5: Solve for x
   x = 7,253,808.38/2,647.95
6. Step 6: Final answer
   x = 2,739.41