Finding the Fourth Proportional to 1,663.76, 2,491.37 and 1,614.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663.76 : 2,491.37 = 1,614.49 : x
2. Step 2: Convert to fraction form
   1,663.76/2,491.37 = 1,614.49/x
3. Step 3: Cross multiply
   1,663.76x = 2,491.37 × 1,614.49
4. Step 4: Simplify right side
   1,663.76x = 4,022,287.73
5. Step 5: Solve for x
   x = 4,022,287.73/1,663.76
6. Step 6: Final answer
   x = 2,417.59