Finding the Fourth Proportional to 5,156.10, 7,727.15 and 2,190.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,156.10 : 7,727.15 = 2,190.82 : x
2. Step 2: Convert to fraction form
   5,156.10/7,727.15 = 2,190.82/x
3. Step 3: Cross multiply
   5,156.10x = 7,727.15 × 2,190.82
4. Step 4: Simplify right side
   5,156.10x = 16,928,804.82
5. Step 5: Solve for x
   x = 16,928,804.82/5,156.10
6. Step 6: Final answer
   x = 3,283.26