Finding the Fourth Proportional to 3,402.48, 5,105.28 and 2,018.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,402.48 : 5,105.28 = 2,018.56 : x
2. Step 2: Convert to fraction form
   3,402.48/5,105.28 = 2,018.56/x
3. Step 3: Cross multiply
   3,402.48x = 5,105.28 × 2,018.56
4. Step 4: Simplify right side
   3,402.48x = 10,305,314.00
5. Step 5: Solve for x
   x = 10,305,314.00/3,402.48
6. Step 6: Final answer
   x = 3,028.77