Finding the Fourth Proportional to 2,081.94, 3,121.47 and 927.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.94 : 3,121.47 = 927.06 : x
2. Step 2: Convert to fraction form
   2,081.94/3,121.47 = 927.06/x
3. Step 3: Cross multiply
   2,081.94x = 3,121.47 × 927.06
4. Step 4: Simplify right side
   2,081.94x = 2,893,789.98
5. Step 5: Solve for x
   x = 2,893,789.98/2,081.94
6. Step 6: Final answer
   x = 1,389.95