Finding the Fourth Proportional to 1,448.16, 1,996.08 and 1,185.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448.16 : 1,996.08 = 1,185.72 : x
2. Step 2: Convert to fraction form
   1,448.16/1,996.08 = 1,185.72/x
3. Step 3: Cross multiply
   1,448.16x = 1,996.08 × 1,185.72
4. Step 4: Simplify right side
   1,448.16x = 2,366,791.98
5. Step 5: Solve for x
   x = 2,366,791.98/1,448.16
6. Step 6: Final answer
   x = 1,634.34