Finding the Fourth Proportional to 2,173.38, 3,260.55 and 1,018.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.38 : 3,260.55 = 1,018.50 : x
2. Step 2: Convert to fraction form
   2,173.38/3,260.55 = 1,018.50/x
3. Step 3: Cross multiply
   2,173.38x = 3,260.55 × 1,018.50
4. Step 4: Simplify right side
   2,173.38x = 3,320,870.18
5. Step 5: Solve for x
   x = 3,320,870.18/2,173.38
6. Step 6: Final answer
   x = 1,527.97