Finding the Fourth Proportional to 2,544.61, 3,817.37 and 1,311.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544.61 : 3,817.37 = 1,311.69 : x
2. Step 2: Convert to fraction form
   2,544.61/3,817.37 = 1,311.69/x
3. Step 3: Cross multiply
   2,544.61x = 3,817.37 × 1,311.69
4. Step 4: Simplify right side
   2,544.61x = 5,007,209.33
5. Step 5: Solve for x
   x = 5,007,209.33/2,544.61
6. Step 6: Final answer
   x = 1,967.77