Finding the Fourth Proportional to 2,228.76, 3,075.72 and 1,234.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,228.76 : 3,075.72 = 1,234.12 : x
2. Step 2: Convert to fraction form
   2,228.76/3,075.72 = 1,234.12/x
3. Step 3: Cross multiply
   2,228.76x = 3,075.72 × 1,234.12
4. Step 4: Simplify right side
   2,228.76x = 3,795,807.57
5. Step 5: Solve for x
   x = 3,795,807.57/2,228.76
6. Step 6: Final answer
   x = 1,703.10