Finding the Fourth Proportional to 2,014.47, 2,778.71 and 1,455.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.47 : 2,778.71 = 1,455.57 : x
2. Step 2: Convert to fraction form
   2,014.47/2,778.71 = 1,455.57/x
3. Step 3: Cross multiply
   2,014.47x = 2,778.71 × 1,455.57
4. Step 4: Simplify right side
   2,014.47x = 4,044,599.64
5. Step 5: Solve for x
   x = 4,044,599.64/2,014.47
6. Step 6: Final answer
   x = 2,007.77