Finding the Fourth Proportional to 2,847.51, 4,270.59 and 1,286.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,847.51 : 4,270.59 = 1,286.55 : x
2. Step 2: Convert to fraction form
   2,847.51/4,270.59 = 1,286.55/x
3. Step 3: Cross multiply
   2,847.51x = 4,270.59 × 1,286.55
4. Step 4: Simplify right side
   2,847.51x = 5,494,327.56
5. Step 5: Solve for x
   x = 5,494,327.56/2,847.51
6. Step 6: Final answer
   x = 1,929.52