Finding the Fourth Proportional to 1,410.32, 1,945.16 and 1,018.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.32 : 1,945.16 = 1,018.64 : x
2. Step 2: Convert to fraction form
   1,410.32/1,945.16 = 1,018.64/x
3. Step 3: Cross multiply
   1,410.32x = 1,945.16 × 1,018.64
4. Step 4: Simplify right side
   1,410.32x = 1,981,417.78
5. Step 5: Solve for x
   x = 1,981,417.78/1,410.32
6. Step 6: Final answer
   x = 1,404.94