Finding the Fourth Proportional to 2,727.38, 4,091.63 and 972.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,727.38 : 4,091.63 = 972.42 : x
2. Step 2: Convert to fraction form
   2,727.38/4,091.63 = 972.42/x
3. Step 3: Cross multiply
   2,727.38x = 4,091.63 × 972.42
4. Step 4: Simplify right side
   2,727.38x = 3,978,777.98
5. Step 5: Solve for x
   x = 3,978,777.98/2,727.38
6. Step 6: Final answer
   x = 1,458.83