Finding the Fourth Proportional to 2,227.81, 3,075.19 and 1,296.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.81 : 3,075.19 = 1,296.31 : x
2. Step 2: Convert to fraction form
   2,227.81/3,075.19 = 1,296.31/x
3. Step 3: Cross multiply
   2,227.81x = 3,075.19 × 1,296.31
4. Step 4: Simplify right side
   2,227.81x = 3,986,410.48
5. Step 5: Solve for x
   x = 3,986,410.48/2,227.81
6. Step 6: Final answer
   x = 1,789.38