Finding the Fourth Proportional to 1,900.23, 2,608.25 and 1,685.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.23 : 2,608.25 = 1,685.73 : x
2. Step 2: Convert to fraction form
   1,900.23/2,608.25 = 1,685.73/x
3. Step 3: Cross multiply
   1,900.23x = 2,608.25 × 1,685.73
4. Step 4: Simplify right side
   1,900.23x = 4,396,796.84
5. Step 5: Solve for x
   x = 4,396,796.84/1,900.23
6. Step 6: Final answer
   x = 2,313.82