Finding the Fourth Proportional to 2,081.30, 2,872.17 and 1,197.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.30 : 2,872.17 = 1,197.02 : x
2. Step 2: Convert to fraction form
   2,081.30/2,872.17 = 1,197.02/x
3. Step 3: Cross multiply
   2,081.30x = 2,872.17 × 1,197.02
4. Step 4: Simplify right side
   2,081.30x = 3,438,030.57
5. Step 5: Solve for x
   x = 3,438,030.57/2,081.30
6. Step 6: Final answer
   x = 1,651.87