Finding the Fourth Proportional to 2,317.79, 3,198.53 and 1,269.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,317.79 : 3,198.53 = 1,269.86 : x
2. Step 2: Convert to fraction form
   2,317.79/3,198.53 = 1,269.86/x
3. Step 3: Cross multiply
   2,317.79x = 3,198.53 × 1,269.86
4. Step 4: Simplify right side
   2,317.79x = 4,061,672.49
5. Step 5: Solve for x
   x = 4,061,672.49/2,317.79
6. Step 6: Final answer
   x = 1,752.39