Finding the Fourth Proportional to 1,616.02, 2,229.40 and 1,018.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616.02 : 2,229.40 = 1,018.15 : x
2. Step 2: Convert to fraction form
   1,616.02/2,229.40 = 1,018.15/x
3. Step 3: Cross multiply
   1,616.02x = 2,229.40 × 1,018.15
4. Step 4: Simplify right side
   1,616.02x = 2,269,859.31
5. Step 5: Solve for x
   x = 2,269,859.31/1,616.02
6. Step 6: Final answer
   x = 1,404.60