Finding the Fourth Proportional to 1,450.89, 2,175.15 and 720.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,450.89 : 2,175.15 = 720.27 : x
2. Step 2: Convert to fraction form
   1,450.89/2,175.15 = 720.27/x
3. Step 3: Cross multiply
   1,450.89x = 2,175.15 × 720.27
4. Step 4: Simplify right side
   1,450.89x = 1,566,695.29
5. Step 5: Solve for x
   x = 1,566,695.29/1,450.89
6. Step 6: Final answer
   x = 1,079.82