Finding the Fourth Proportional to 2,087.39, 3,131.09 and 1,695.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.39 : 3,131.09 = 1,695.54 : x
2. Step 2: Convert to fraction form
   2,087.39/3,131.09 = 1,695.54/x
3. Step 3: Cross multiply
   2,087.39x = 3,131.09 × 1,695.54
4. Step 4: Simplify right side
   2,087.39x = 5,308,879.86
5. Step 5: Solve for x
   x = 5,308,879.86/2,087.39
6. Step 6: Final answer
   x = 2,543.32