Finding the Fourth Proportional to 1,665.73, 2,498.45 and 1,535.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.73 : 2,498.45 = 1,535.23 : x
2. Step 2: Convert to fraction form
   1,665.73/2,498.45 = 1,535.23/x
3. Step 3: Cross multiply
   1,665.73x = 2,498.45 × 1,535.23
4. Step 4: Simplify right side
   1,665.73x = 3,835,687.72
5. Step 5: Solve for x
   x = 3,835,687.72/1,665.73
6. Step 6: Final answer
   x = 2,302.71