Finding the Fourth Proportional to 2,009.34, 3,014.55 and 839.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.34 : 3,014.55 = 839.88 : x
2. Step 2: Convert to fraction form
   2,009.34/3,014.55 = 839.88/x
3. Step 3: Cross multiply
   2,009.34x = 3,014.55 × 839.88
4. Step 4: Simplify right side
   2,009.34x = 2,531,860.25
5. Step 5: Solve for x
   x = 2,531,860.25/2,009.34
6. Step 6: Final answer
   x = 1,260.05