Finding the Fourth Proportional to 2,801.98, 4,194.86 and 2,111.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,801.98 : 4,194.86 = 2,111.56 : x
2. Step 2: Convert to fraction form
   2,801.98/4,194.86 = 2,111.56/x
3. Step 3: Cross multiply
   2,801.98x = 4,194.86 × 2,111.56
4. Step 4: Simplify right side
   2,801.98x = 8,857,698.58
5. Step 5: Solve for x
   x = 8,857,698.58/2,801.98
6. Step 6: Final answer
   x = 3,161.23