Finding the Fourth Proportional to 2,076.05, 2,864.36 and 1,191.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.05 : 2,864.36 = 1,191.53 : x
2. Step 2: Convert to fraction form
   2,076.05/2,864.36 = 1,191.53/x
3. Step 3: Cross multiply
   2,076.05x = 2,864.36 × 1,191.53
4. Step 4: Simplify right side
   2,076.05x = 3,412,959.53
5. Step 5: Solve for x
   x = 3,412,959.53/2,076.05
6. Step 6: Final answer
   x = 1,643.97