Finding the Fourth Proportional to 2,601.17, 3,900.20 and 1,018.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.17 : 3,900.20 = 1,018.00 : x
2. Step 2: Convert to fraction form
   2,601.17/3,900.20 = 1,018.00/x
3. Step 3: Cross multiply
   2,601.17x = 3,900.20 × 1,018.00
4. Step 4: Simplify right side
   2,601.17x = 3,970,403.39
5. Step 5: Solve for x
   x = 3,970,403.39/2,601.17
6. Step 6: Final answer
   x = 1,526.39