Finding the Fourth Proportional to 2,826.16, 4,241.28 and 1,072.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,826.16 : 4,241.28 = 1,072.88 : x
2. Step 2: Convert to fraction form
   2,826.16/4,241.28 = 1,072.88/x
3. Step 3: Cross multiply
   2,826.16x = 4,241.28 × 1,072.88
4. Step 4: Simplify right side
   2,826.16x = 4,550,384.49
5. Step 5: Solve for x
   x = 4,550,384.49/2,826.16
6. Step 6: Final answer
   x = 1,610.09