Finding the Fourth Proportional to 4,109.19, 5,670.89 and 2,431.56

Step by Step Solution

1. Step 1: Write the proportion equation
   4,109.19 : 5,670.89 = 2,431.56 : x
2. Step 2: Convert to fraction form
   4,109.19/5,670.89 = 2,431.56/x
3. Step 3: Cross multiply
   4,109.19x = 5,670.89 × 2,431.56
4. Step 4: Simplify right side
   4,109.19x = 13,789,109.29
5. Step 5: Solve for x
   x = 13,789,109.29/4,109.19
6. Step 6: Final answer
   x = 3,355.68