Finding the Fourth Proportional to 2,300.81, 3,427.11 and 2,272.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.81 : 3,427.11 = 2,272.05 : x
2. Step 2: Convert to fraction form
   2,300.81/3,427.11 = 2,272.05/x
3. Step 3: Cross multiply
   2,300.81x = 3,427.11 × 2,272.05
4. Step 4: Simplify right side
   2,300.81x = 7,786,565.28
5. Step 5: Solve for x
   x = 7,786,565.28/2,300.81
6. Step 6: Final answer
   x = 3,384.28