Finding the Fourth Proportional to 2,300.69, 3,451.26 and 839.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.69 : 3,451.26 = 839.95 : x
2. Step 2: Convert to fraction form
   2,300.69/3,451.26 = 839.95/x
3. Step 3: Cross multiply
   2,300.69x = 3,451.26 × 839.95
4. Step 4: Simplify right side
   2,300.69x = 2,898,895.05
5. Step 5: Solve for x
   x = 2,898,895.05/2,300.69
6. Step 6: Final answer
   x = 1,260.01