Finding the Fourth Proportional to 2,091.27, 2,905.32 and 2,072.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.27 : 2,905.32 = 2,072.25 : x
2. Step 2: Convert to fraction form
   2,091.27/2,905.32 = 2,072.25/x
3. Step 3: Cross multiply
   2,091.27x = 2,905.32 × 2,072.25
4. Step 4: Simplify right side
   2,091.27x = 6,020,549.37
5. Step 5: Solve for x
   x = 6,020,549.37/2,091.27
6. Step 6: Final answer
   x = 2,878.90