Finding the Fourth Proportional to 2,018.34, 3,027.52 and 557.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.34 : 3,027.52 = 557.61 : x
2. Step 2: Convert to fraction form
   2,018.34/3,027.52 = 557.61/x
3. Step 3: Cross multiply
   2,018.34x = 3,027.52 × 557.61
4. Step 4: Simplify right side
   2,018.34x = 1,688,174.03
5. Step 5: Solve for x
   x = 1,688,174.03/2,018.34
6. Step 6: Final answer
   x = 836.42