Finding the Fourth Proportional to 2,304.22, 3,178.81 and 1,557.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.22 : 3,178.81 = 1,557.91 : x
2. Step 2: Convert to fraction form
   2,304.22/3,178.81 = 1,557.91/x
3. Step 3: Cross multiply
   2,304.22x = 3,178.81 × 1,557.91
4. Step 4: Simplify right side
   2,304.22x = 4,952,287.89
5. Step 5: Solve for x
   x = 4,952,287.89/2,304.22
6. Step 6: Final answer
   x = 2,149.23