Finding the Fourth Proportional to 2,288.15, 3,160.23 and 1,540.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.15 : 3,160.23 = 1,540.80 : x
2. Step 2: Convert to fraction form
   2,288.15/3,160.23 = 1,540.80/x
3. Step 3: Cross multiply
   2,288.15x = 3,160.23 × 1,540.80
4. Step 4: Simplify right side
   2,288.15x = 4,869,300.01
5. Step 5: Solve for x
   x = 4,869,300.01/2,288.15
6. Step 6: Final answer
   x = 2,128.06