Finding the Fourth Proportional to 2,943.63, 4,415.86 and 995.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,943.63 : 4,415.86 = 995.31 : x
2. Step 2: Convert to fraction form
   2,943.63/4,415.86 = 995.31/x
3. Step 3: Cross multiply
   2,943.63x = 4,415.86 × 995.31
4. Step 4: Simplify right side
   2,943.63x = 4,395,144.64
5. Step 5: Solve for x
   x = 4,395,144.64/2,943.63
6. Step 6: Final answer
   x = 1,493.10