Finding the Fourth Proportional to 2,091.46, 2,886.60 and 1,427.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.46 : 2,886.60 = 1,427.89 : x
2. Step 2: Convert to fraction form
   2,091.46/2,886.60 = 1,427.89/x
3. Step 3: Cross multiply
   2,091.46x = 2,886.60 × 1,427.89
4. Step 4: Simplify right side
   2,091.46x = 4,121,747.27
5. Step 5: Solve for x
   x = 4,121,747.27/2,091.46
6. Step 6: Final answer
   x = 1,970.75