Finding the Fourth Proportional to 1,162.33, 1,604.61 and 720.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.33 : 1,604.61 = 720.49 : x
2. Step 2: Convert to fraction form
   1,162.33/1,604.61 = 720.49/x
3. Step 3: Cross multiply
   1,162.33x = 1,604.61 × 720.49
4. Step 4: Simplify right side
   1,162.33x = 1,156,105.46
5. Step 5: Solve for x
   x = 1,156,105.46/1,162.33
6. Step 6: Final answer
   x = 994.64