Finding the Fourth Proportional to 2,207.76, 3,041.89 and 1,648

Step by Step Solution

1. Step 1: Write the proportion equation
   2,207.76 : 3,041.89 = 1,648 : x
2. Step 2: Convert to fraction form
   2,207.76/3,041.89 = 1,648/x
3. Step 3: Cross multiply
   2,207.76x = 3,041.89 × 1,648
4. Step 4: Simplify right side
   2,207.76x = 5,013,034.72
5. Step 5: Solve for x
   x = 5,013,034.72/2,207.76
6. Step 6: Final answer
   x = 2,270.64