Finding the Fourth Proportional to 2,228.42, 3,075.56 and 1,284.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,228.42 : 3,075.56 = 1,284.35 : x
2. Step 2: Convert to fraction form
   2,228.42/3,075.56 = 1,284.35/x
3. Step 3: Cross multiply
   2,228.42x = 3,075.56 × 1,284.35
4. Step 4: Simplify right side
   2,228.42x = 3,950,095.49
5. Step 5: Solve for x
   x = 3,950,095.49/2,228.42
6. Step 6: Final answer
   x = 1,772.60