Finding the Fourth Proportional to 2,810.44, 4,216.38 and 1,271.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,810.44 : 4,216.38 = 1,271.56 : x
2. Step 2: Convert to fraction form
   2,810.44/4,216.38 = 1,271.56/x
3. Step 3: Cross multiply
   2,810.44x = 4,216.38 × 1,271.56
4. Step 4: Simplify right side
   2,810.44x = 5,361,380.15
5. Step 5: Solve for x
   x = 5,361,380.15/2,810.44
6. Step 6: Final answer
   x = 1,907.67