Finding the Fourth Proportional to 2,076.29, 2,865.15 and 1,191.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.29 : 2,865.15 = 1,191.47 : x
2. Step 2: Convert to fraction form
   2,076.29/2,865.15 = 1,191.47/x
3. Step 3: Cross multiply
   2,076.29x = 2,865.15 × 1,191.47
4. Step 4: Simplify right side
   2,076.29x = 3,413,740.27
5. Step 5: Solve for x
   x = 3,413,740.27/2,076.29
6. Step 6: Final answer
   x = 1,644.15