Finding the Fourth Proportional to 2,125.89, 3,171.78 and 1,814.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,125.89 : 3,171.78 = 1,814.18 : x
2. Step 2: Convert to fraction form
   2,125.89/3,171.78 = 1,814.18/x
3. Step 3: Cross multiply
   2,125.89x = 3,171.78 × 1,814.18
4. Step 4: Simplify right side
   2,125.89x = 5,754,179.84
5. Step 5: Solve for x
   x = 5,754,179.84/2,125.89
6. Step 6: Final answer
   x = 2,706.72