Finding the Fourth Proportional to 2,091.72, 2,886.94 and 1,208.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.72 : 2,886.94 = 1,208.01 : x
2. Step 2: Convert to fraction form
   2,091.72/2,886.94 = 1,208.01/x
3. Step 3: Cross multiply
   2,091.72x = 2,886.94 × 1,208.01
4. Step 4: Simplify right side
   2,091.72x = 3,487,464.73
5. Step 5: Solve for x
   x = 3,487,464.73/2,091.72
6. Step 6: Final answer
   x = 1,667.27