Finding the Fourth Proportional to 2,085.39, 3,103.52 and 2,007.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.39 : 3,103.52 = 2,007.63 : x
2. Step 2: Convert to fraction form
   2,085.39/3,103.52 = 2,007.63/x
3. Step 3: Cross multiply
   2,085.39x = 3,103.52 × 2,007.63
4. Step 4: Simplify right side
   2,085.39x = 6,230,709.82
5. Step 5: Solve for x
   x = 6,230,709.82/2,085.39
6. Step 6: Final answer
   x = 2,987.79