Finding the Fourth Proportional to 2,300.09, 3,451.50 and 839.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.09 : 3,451.50 = 839.34 : x
2. Step 2: Convert to fraction form
   2,300.09/3,451.50 = 839.34/x
3. Step 3: Cross multiply
   2,300.09x = 3,451.50 × 839.34
4. Step 4: Simplify right side
   2,300.09x = 2,896,982.01
5. Step 5: Solve for x
   x = 2,896,982.01/2,300.09
6. Step 6: Final answer
   x = 1,259.51