Finding the Fourth Proportional to 2,095.50, 2,891.33 and 1,211.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.50 : 2,891.33 = 1,211.15 : x
2. Step 2: Convert to fraction form
   2,095.50/2,891.33 = 1,211.15/x
3. Step 3: Cross multiply
   2,095.50x = 2,891.33 × 1,211.15
4. Step 4: Simplify right side
   2,095.50x = 3,501,840.04
5. Step 5: Solve for x
   x = 3,501,840.04/2,095.50
6. Step 6: Final answer
   x = 1,671.12