Finding the Fourth Proportional to 5,410.46, 8,116.38 and 1,900.21

Step by Step Solution

1. Step 1: Write the proportion equation
   5,410.46 : 8,116.38 = 1,900.21 : x
2. Step 2: Convert to fraction form
   5,410.46/8,116.38 = 1,900.21/x
3. Step 3: Cross multiply
   5,410.46x = 8,116.38 × 1,900.21
4. Step 4: Simplify right side
   5,410.46x = 15,422,806.15
5. Step 5: Solve for x
   x = 15,422,806.15/5,410.46
6. Step 6: Final answer
   x = 2,850.56