Finding the Fourth Proportional to 2,636.19, 3,636.27 and 2,005.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.19 : 3,636.27 = 2,005.34 : x
2. Step 2: Convert to fraction form
   2,636.19/3,636.27 = 2,005.34/x
3. Step 3: Cross multiply
   2,636.19x = 3,636.27 × 2,005.34
4. Step 4: Simplify right side
   2,636.19x = 7,291,939.50
5. Step 5: Solve for x
   x = 7,291,939.50/2,636.19
6. Step 6: Final answer
   x = 2,766.09