Finding the Fourth Proportional to 1,162.23, 1,603.71 and 742.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.23 : 1,603.71 = 742.43 : x
2. Step 2: Convert to fraction form
   1,162.23/1,603.71 = 742.43/x
3. Step 3: Cross multiply
   1,162.23x = 1,603.71 × 742.43
4. Step 4: Simplify right side
   1,162.23x = 1,190,634.40
5. Step 5: Solve for x
   x = 1,190,634.40/1,162.23
6. Step 6: Final answer
   x = 1,024.44