Finding the Fourth Proportional to 2,287.32, 3,157.92 and 1,541.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.32 : 3,157.92 = 1,541.40 : x
2. Step 2: Convert to fraction form
   2,287.32/3,157.92 = 1,541.40/x
3. Step 3: Cross multiply
   2,287.32x = 3,157.92 × 1,541.40
4. Step 4: Simplify right side
   2,287.32x = 4,867,617.89
5. Step 5: Solve for x
   x = 4,867,617.89/2,287.32
6. Step 6: Final answer
   x = 2,128.09