Finding the Fourth Proportional to 1,442.37, 1,989.23 and 1,162.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442.37 : 1,989.23 = 1,162.50 : x
2. Step 2: Convert to fraction form
   1,442.37/1,989.23 = 1,162.50/x
3. Step 3: Cross multiply
   1,442.37x = 1,989.23 × 1,162.50
4. Step 4: Simplify right side
   1,442.37x = 2,312,474.06
5. Step 5: Solve for x
   x = 2,312,474.06/1,442.37
6. Step 6: Final answer
   x = 1,603.25