Finding the Fourth Proportional to 1,450.30, 2,001.23 and 860.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,450.30 : 2,001.23 = 860.72 : x
2. Step 2: Convert to fraction form
   1,450.30/2,001.23 = 860.72/x
3. Step 3: Cross multiply
   1,450.30x = 2,001.23 × 860.72
4. Step 4: Simplify right side
   1,450.30x = 1,722,498.69
5. Step 5: Solve for x
   x = 1,722,498.69/1,450.30
6. Step 6: Final answer
   x = 1,187.68