Finding the Fourth Proportional to 2,111.27, 2,913.56 and 1,179.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.27 : 2,913.56 = 1,179.77 : x
2. Step 2: Convert to fraction form
   2,111.27/2,913.56 = 1,179.77/x
3. Step 3: Cross multiply
   2,111.27x = 2,913.56 × 1,179.77
4. Step 4: Simplify right side
   2,111.27x = 3,437,342.54
5. Step 5: Solve for x
   x = 3,437,342.54/2,111.27
6. Step 6: Final answer
   x = 1,628.09