Finding the Fourth Proportional to 1,447.44, 1,998.72 and 1,053.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.44 : 1,998.72 = 1,053.60 : x
2. Step 2: Convert to fraction form
   1,447.44/1,998.72 = 1,053.60/x
3. Step 3: Cross multiply
   1,447.44x = 1,998.72 × 1,053.60
4. Step 4: Simplify right side
   1,447.44x = 2,105,851.39
5. Step 5: Solve for x
   x = 2,105,851.39/1,447.44
6. Step 6: Final answer
   x = 1,454.88