Finding the Fourth Proportional to 2,081.61, 2,872.29 and 1,197.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.61 : 2,872.29 = 1,197.27 : x
2. Step 2: Convert to fraction form
   2,081.61/2,872.29 = 1,197.27/x
3. Step 3: Cross multiply
   2,081.61x = 2,872.29 × 1,197.27
4. Step 4: Simplify right side
   2,081.61x = 3,438,906.65
5. Step 5: Solve for x
   x = 3,438,906.65/2,081.61
6. Step 6: Final answer
   x = 1,652.04