Finding the Fourth Proportional to 2,185.80, 3,279.35 and 2,055.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.80 : 3,279.35 = 2,055.25 : x
2. Step 2: Convert to fraction form
   2,185.80/3,279.35 = 2,055.25/x
3. Step 3: Cross multiply
   2,185.80x = 3,279.35 × 2,055.25
4. Step 4: Simplify right side
   2,185.80x = 6,739,898.69
5. Step 5: Solve for x
   x = 6,739,898.69/2,185.80
6. Step 6: Final answer
   x = 3,083.49