Finding the Fourth Proportional to 2,229.84, 3,075.72 and 1,297.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.84 : 3,075.72 = 1,297.68 : x
2. Step 2: Convert to fraction form
   2,229.84/3,075.72 = 1,297.68/x
3. Step 3: Cross multiply
   2,229.84x = 3,075.72 × 1,297.68
4. Step 4: Simplify right side
   2,229.84x = 3,991,300.33
5. Step 5: Solve for x
   x = 3,991,300.33/2,229.84
6. Step 6: Final answer
   x = 1,789.95