Finding the Fourth Proportional to 2,009.88, 3,014.42 and 1,399.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.88 : 3,014.42 = 1,399.14 : x
2. Step 2: Convert to fraction form
   2,009.88/3,014.42 = 1,399.14/x
3. Step 3: Cross multiply
   2,009.88x = 3,014.42 × 1,399.14
4. Step 4: Simplify right side
   2,009.88x = 4,217,588.60
5. Step 5: Solve for x
   x = 4,217,588.60/2,009.88
6. Step 6: Final answer
   x = 2,098.43