Finding the Fourth Proportional to 2,397.78, 3,595.20 and 837.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,397.78 : 3,595.20 = 837.42 : x
2. Step 2: Convert to fraction form
   2,397.78/3,595.20 = 837.42/x
3. Step 3: Cross multiply
   2,397.78x = 3,595.20 × 837.42
4. Step 4: Simplify right side
   2,397.78x = 3,010,692.38
5. Step 5: Solve for x
   x = 3,010,692.38/2,397.78
6. Step 6: Final answer
   x = 1,255.62