Finding the Fourth Proportional to 2,095.90, 3,145.37 and 1,689.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.90 : 3,145.37 = 1,689.94 : x
2. Step 2: Convert to fraction form
   2,095.90/3,145.37 = 1,689.94/x
3. Step 3: Cross multiply
   2,095.90x = 3,145.37 × 1,689.94
4. Step 4: Simplify right side
   2,095.90x = 5,315,462.40
5. Step 5: Solve for x
   x = 5,315,462.40/2,095.90
6. Step 6: Final answer
   x = 2,536.13