Finding the Fourth Proportional to 1,418.72, 1,953.60 and 1,185.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418.72 : 1,953.60 = 1,185.44 : x
2. Step 2: Convert to fraction form
   1,418.72/1,953.60 = 1,185.44/x
3. Step 3: Cross multiply
   1,418.72x = 1,953.60 × 1,185.44
4. Step 4: Simplify right side
   1,418.72x = 2,315,875.58
5. Step 5: Solve for x
   x = 2,315,875.58/1,418.72
6. Step 6: Final answer
   x = 1,632.37