Finding the Fourth Proportional to 3,806.10, 5,696.18 and 3,190.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,806.10 : 5,696.18 = 3,190.50 : x
2. Step 2: Convert to fraction form
   3,806.10/5,696.18 = 3,190.50/x
3. Step 3: Cross multiply
   3,806.10x = 5,696.18 × 3,190.50
4. Step 4: Simplify right side
   3,806.10x = 18,173,662.29
5. Step 5: Solve for x
   x = 18,173,662.29/3,806.10
6. Step 6: Final answer
   x = 4,774.88