Finding the Fourth Proportional to 3,895.56, 5,375.20 and 3,698.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,895.56 : 5,375.20 = 3,698.56 : x
2. Step 2: Convert to fraction form
   3,895.56/5,375.20 = 3,698.56/x
3. Step 3: Cross multiply
   3,895.56x = 5,375.20 × 3,698.56
4. Step 4: Simplify right side
   3,895.56x = 19,880,499.71
5. Step 5: Solve for x
   x = 19,880,499.71/3,895.56
6. Step 6: Final answer
   x = 5,103.37