Finding the Fourth Proportional to 2,095.61, 2,891.97 and 1,211.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.61 : 2,891.97 = 1,211.40 : x
2. Step 2: Convert to fraction form
   2,095.61/2,891.97 = 1,211.40/x
3. Step 3: Cross multiply
   2,095.61x = 2,891.97 × 1,211.40
4. Step 4: Simplify right side
   2,095.61x = 3,503,332.46
5. Step 5: Solve for x
   x = 3,503,332.46/2,095.61
6. Step 6: Final answer
   x = 1,671.75