Finding the Fourth Proportional to 3,811.69, 5,260.25 and 2,300.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,811.69 : 5,260.25 = 2,300.05 : x
2. Step 2: Convert to fraction form
   3,811.69/5,260.25 = 2,300.05/x
3. Step 3: Cross multiply
   3,811.69x = 5,260.25 × 2,300.05
4. Step 4: Simplify right side
   3,811.69x = 12,098,838.01
5. Step 5: Solve for x
   x = 12,098,838.01/3,811.69
6. Step 6: Final answer
   x = 3,174.14