Finding the Fourth Proportional to 2,105.37, 3,158.06 and 2,054.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.37 : 3,158.06 = 2,054.62 : x
2. Step 2: Convert to fraction form
   2,105.37/3,158.06 = 2,054.62/x
3. Step 3: Cross multiply
   2,105.37x = 3,158.06 × 2,054.62
4. Step 4: Simplify right side
   2,105.37x = 6,488,602.96
5. Step 5: Solve for x
   x = 6,488,602.96/2,105.37
6. Step 6: Final answer
   x = 3,081.94