Finding the Fourth Proportional to 2,317.66, 3,198.37 and 1,269.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,317.66 : 3,198.37 = 1,269.72 : x
2. Step 2: Convert to fraction form
   2,317.66/3,198.37 = 1,269.72/x
3. Step 3: Cross multiply
   2,317.66x = 3,198.37 × 1,269.72
4. Step 4: Simplify right side
   2,317.66x = 4,061,034.36
5. Step 5: Solve for x
   x = 4,061,034.36/2,317.66
6. Step 6: Final answer
   x = 1,752.21