Finding the Fourth Proportional to 1,665.60, 2,498.41 and 495.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.60 : 2,498.41 = 495.62 : x
2. Step 2: Convert to fraction form
   1,665.60/2,498.41 = 495.62/x
3. Step 3: Cross multiply
   1,665.60x = 2,498.41 × 495.62
4. Step 4: Simplify right side
   1,665.60x = 1,238,259.46
5. Step 5: Solve for x
   x = 1,238,259.46/1,665.60
6. Step 6: Final answer
   x = 743.43