Finding the Fourth Proportional to 3,922.98, 5,889.72 and 3,857.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,922.98 : 5,889.72 = 3,857.34 : x
2. Step 2: Convert to fraction form
   3,922.98/5,889.72 = 3,857.34/x
3. Step 3: Cross multiply
   3,922.98x = 5,889.72 × 3,857.34
4. Step 4: Simplify right side
   3,922.98x = 22,718,652.54
5. Step 5: Solve for x
   x = 22,718,652.54/3,922.98
6. Step 6: Final answer
   x = 5,791.17