Finding the Fourth Proportional to 3,868.09, 5,764.07 and 3,634.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.09 : 5,764.07 = 3,634.34 : x
2. Step 2: Convert to fraction form
   3,868.09/5,764.07 = 3,634.34/x
3. Step 3: Cross multiply
   3,868.09x = 5,764.07 × 3,634.34
4. Step 4: Simplify right side
   3,868.09x = 20,948,570.43
5. Step 5: Solve for x
   x = 20,948,570.43/3,868.09
6. Step 6: Final answer
   x = 5,415.74