Finding the Fourth Proportional to 2,847.96, 4,267.89 and 1,284.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,847.96 : 4,267.89 = 1,284.05 : x
2. Step 2: Convert to fraction form
   2,847.96/4,267.89 = 1,284.05/x
3. Step 3: Cross multiply
   2,847.96x = 4,267.89 × 1,284.05
4. Step 4: Simplify right side
   2,847.96x = 5,480,194.82
5. Step 5: Solve for x
   x = 5,480,194.82/2,847.96
6. Step 6: Final answer
   x = 1,924.25