Finding the Fourth Proportional to 2,270.80, 3,398.91 and 1,529.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.80 : 3,398.91 = 1,529.05 : x
2. Step 2: Convert to fraction form
   2,270.80/3,398.91 = 1,529.05/x
3. Step 3: Cross multiply
   2,270.80x = 3,398.91 × 1,529.05
4. Step 4: Simplify right side
   2,270.80x = 5,197,086.34
5. Step 5: Solve for x
   x = 5,197,086.34/2,270.80
6. Step 6: Final answer
   x = 2,288.66