Finding the Fourth Proportional to 2,186.01, 3,279.92 and 1,059.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186.01 : 3,279.92 = 1,059.71 : x
2. Step 2: Convert to fraction form
   2,186.01/3,279.92 = 1,059.71/x
3. Step 3: Cross multiply
   2,186.01x = 3,279.92 × 1,059.71
4. Step 4: Simplify right side
   2,186.01x = 3,475,742.33
5. Step 5: Solve for x
   x = 3,475,742.33/2,186.01
6. Step 6: Final answer
   x = 1,589.99