Finding the Fourth Proportional to 2,422.38, 3,635.20 and 1,557.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,422.38 : 3,635.20 = 1,557.30 : x
2. Step 2: Convert to fraction form
   2,422.38/3,635.20 = 1,557.30/x
3. Step 3: Cross multiply
   2,422.38x = 3,635.20 × 1,557.30
4. Step 4: Simplify right side
   2,422.38x = 5,661,096.96
5. Step 5: Solve for x
   x = 5,661,096.96/2,422.38
6. Step 6: Final answer
   x = 2,337.00