Finding the Fourth Proportional to 3,858.16, 5,756.92 and 3,623.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,858.16 : 5,756.92 = 3,623.06 : x
2. Step 2: Convert to fraction form
   3,858.16/5,756.92 = 3,623.06/x
3. Step 3: Cross multiply
   3,858.16x = 5,756.92 × 3,623.06
4. Step 4: Simplify right side
   3,858.16x = 20,857,666.58
5. Step 5: Solve for x
   x = 20,857,666.58/3,858.16
6. Step 6: Final answer
   x = 5,406.12