Finding the Fourth Proportional to 2,317.78, 3,198.62 and 1,269.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,317.78 : 3,198.62 = 1,269.84 : x
2. Step 2: Convert to fraction form
   2,317.78/3,198.62 = 1,269.84/x
3. Step 3: Cross multiply
   2,317.78x = 3,198.62 × 1,269.84
4. Step 4: Simplify right side
   2,317.78x = 4,061,729.27
5. Step 5: Solve for x
   x = 4,061,729.27/2,317.78
6. Step 6: Final answer
   x = 1,752.43