Finding the Fourth Proportional to 2,405.28, 3,607.16 and 1,018.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.28 : 3,607.16 = 1,018.56 : x
2. Step 2: Convert to fraction form
   2,405.28/3,607.16 = 1,018.56/x
3. Step 3: Cross multiply
   2,405.28x = 3,607.16 × 1,018.56
4. Step 4: Simplify right side
   2,405.28x = 3,674,103.80
5. Step 5: Solve for x
   x = 3,674,103.80/2,405.28
6. Step 6: Final answer
   x = 1,527.52