Finding the Fourth Proportional to 1,315.58, 1,814.82 and 1,067.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,315.58 : 1,814.82 = 1,067.18 : x
2. Step 2: Convert to fraction form
   1,315.58/1,814.82 = 1,067.18/x
3. Step 3: Cross multiply
   1,315.58x = 1,814.82 × 1,067.18
4. Step 4: Simplify right side
   1,315.58x = 1,936,739.61
5. Step 5: Solve for x
   x = 1,936,739.61/1,315.58
6. Step 6: Final answer
   x = 1,472.16