Finding the Fourth Proportional to 3,818.56, 5,682.11 and 3,805.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,818.56 : 5,682.11 = 3,805.60 : x
2. Step 2: Convert to fraction form
   3,818.56/5,682.11 = 3,805.60/x
3. Step 3: Cross multiply
   3,818.56x = 5,682.11 × 3,805.60
4. Step 4: Simplify right side
   3,818.56x = 21,623,837.82
5. Step 5: Solve for x
   x = 21,623,837.82/3,818.56
6. Step 6: Final answer
   x = 5,662.83