Finding the Fourth Proportional to 2,544.08, 3,810.78 and 1,307.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544.08 : 3,810.78 = 1,307.72 : x
2. Step 2: Convert to fraction form
   2,544.08/3,810.78 = 1,307.72/x
3. Step 3: Cross multiply
   2,544.08x = 3,810.78 × 1,307.72
4. Step 4: Simplify right side
   2,544.08x = 4,983,433.22
5. Step 5: Solve for x
   x = 4,983,433.22/2,544.08
6. Step 6: Final answer
   x = 1,958.84