Finding the Fourth Proportional to 2,081.59, 2,872.43 and 1,197.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.59 : 2,872.43 = 1,197.22 : x
2. Step 2: Convert to fraction form
   2,081.59/2,872.43 = 1,197.22/x
3. Step 3: Cross multiply
   2,081.59x = 2,872.43 × 1,197.22
4. Step 4: Simplify right side
   2,081.59x = 3,438,927.35
5. Step 5: Solve for x
   x = 3,438,927.35/2,081.59
6. Step 6: Final answer
   x = 1,652.07