Finding the Fourth Proportional to 1,721.49, 2,376.38 and 1,162.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.49 : 2,376.38 = 1,162.71 : x
2. Step 2: Convert to fraction form
   1,721.49/2,376.38 = 1,162.71/x
3. Step 3: Cross multiply
   1,721.49x = 2,376.38 × 1,162.71
4. Step 4: Simplify right side
   1,721.49x = 2,763,034.98
5. Step 5: Solve for x
   x = 2,763,034.98/1,721.49
6. Step 6: Final answer
   x = 1,605.03