Finding the Fourth Proportional to 2,447.69, 3,671.07 and 1,131.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.69 : 3,671.07 = 1,131.39 : x
2. Step 2: Convert to fraction form
   2,447.69/3,671.07 = 1,131.39/x
3. Step 3: Cross multiply
   2,447.69x = 3,671.07 × 1,131.39
4. Step 4: Simplify right side
   2,447.69x = 4,153,411.89
5. Step 5: Solve for x
   x = 4,153,411.89/2,447.69
6. Step 6: Final answer
   x = 1,696.87