Finding the Fourth Proportional to 2,005.88, 2,768.18 and 1,121.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,005.88 : 2,768.18 = 1,121.94 : x
2. Step 2: Convert to fraction form
   2,005.88/2,768.18 = 1,121.94/x
3. Step 3: Cross multiply
   2,005.88x = 2,768.18 × 1,121.94
4. Step 4: Simplify right side
   2,005.88x = 3,105,731.87
5. Step 5: Solve for x
   x = 3,105,731.87/2,005.88
6. Step 6: Final answer
   x = 1,548.31