Finding the Fourth Proportional to 2,076.79, 2,865.87 and 1,191.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.79 : 2,865.87 = 1,191.94 : x
2. Step 2: Convert to fraction form
   2,076.79/2,865.87 = 1,191.94/x
3. Step 3: Cross multiply
   2,076.79x = 2,865.87 × 1,191.94
4. Step 4: Simplify right side
   2,076.79x = 3,415,945.09
5. Step 5: Solve for x
   x = 3,415,945.09/2,076.79
6. Step 6: Final answer
   x = 1,644.82