Finding the Fourth Proportional to 1,450.31, 2,173.55 and 757.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,450.31 : 2,173.55 = 757.57 : x
2. Step 2: Convert to fraction form
   1,450.31/2,173.55 = 757.57/x
3. Step 3: Cross multiply
   1,450.31x = 2,173.55 × 757.57
4. Step 4: Simplify right side
   1,450.31x = 1,646,616.27
5. Step 5: Solve for x
   x = 1,646,616.27/1,450.31
6. Step 6: Final answer
   x = 1,135.35