Finding the Fourth Proportional to 2,081.22, 2,871.87 and 1,196.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.22 : 2,871.87 = 1,196.85 : x
2. Step 2: Convert to fraction form
   2,081.22/2,871.87 = 1,196.85/x
3. Step 3: Cross multiply
   2,081.22x = 2,871.87 × 1,196.85
4. Step 4: Simplify right side
   2,081.22x = 3,437,197.61
5. Step 5: Solve for x
   x = 3,437,197.61/2,081.22
6. Step 6: Final answer
   x = 1,651.53