Finding the Fourth Proportional to 2,405.43, 3,607.47 and 1,018.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.43 : 3,607.47 = 1,018.71 : x
2. Step 2: Convert to fraction form
   2,405.43/3,607.47 = 1,018.71/x
3. Step 3: Cross multiply
   2,405.43x = 3,607.47 × 1,018.71
4. Step 4: Simplify right side
   2,405.43x = 3,674,965.76
5. Step 5: Solve for x
   x = 3,674,965.76/2,405.43
6. Step 6: Final answer
   x = 1,527.78