Finding the Fourth Proportional to 2,113.29, 3,165.83 and 1,018.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.29 : 3,165.83 = 1,018.42 : x
2. Step 2: Convert to fraction form
   2,113.29/3,165.83 = 1,018.42/x
3. Step 3: Cross multiply
   2,113.29x = 3,165.83 × 1,018.42
4. Step 4: Simplify right side
   2,113.29x = 3,224,144.59
5. Step 5: Solve for x
   x = 3,224,144.59/2,113.29
6. Step 6: Final answer
   x = 1,525.65