Finding the Fourth Proportional to 2,095.64, 2,891.86 and 1,211.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.64 : 2,891.86 = 1,211.38 : x
2. Step 2: Convert to fraction form
   2,095.64/2,891.86 = 1,211.38/x
3. Step 3: Cross multiply
   2,095.64x = 2,891.86 × 1,211.38
4. Step 4: Simplify right side
   2,095.64x = 3,503,141.37
5. Step 5: Solve for x
   x = 3,503,141.37/2,095.64
6. Step 6: Final answer
   x = 1,671.63