Finding the Fourth Proportional to 2,405.73, 3,605.79 and 1,018.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.73 : 3,605.79 = 1,018.61 : x
2. Step 2: Convert to fraction form
   2,405.73/3,605.79 = 1,018.61/x
3. Step 3: Cross multiply
   2,405.73x = 3,605.79 × 1,018.61
4. Step 4: Simplify right side
   2,405.73x = 3,672,875.72
5. Step 5: Solve for x
   x = 3,672,875.72/2,405.73
6. Step 6: Final answer
   x = 1,526.72