Finding the Fourth Proportional to 1,665.69, 2,501.92 and 1,610.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.69 : 2,501.92 = 1,610.32 : x
2. Step 2: Convert to fraction form
   1,665.69/2,501.92 = 1,610.32/x
3. Step 3: Cross multiply
   1,665.69x = 2,501.92 × 1,610.32
4. Step 4: Simplify right side
   1,665.69x = 4,028,891.81
5. Step 5: Solve for x
   x = 4,028,891.81/1,665.69
6. Step 6: Final answer
   x = 2,418.75