Finding the Fourth Proportional to 2,527.20, 3,791.31 and 1,066.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,527.20 : 3,791.31 = 1,066.35 : x
2. Step 2: Convert to fraction form
   2,527.20/3,791.31 = 1,066.35/x
3. Step 3: Cross multiply
   2,527.20x = 3,791.31 × 1,066.35
4. Step 4: Simplify right side
   2,527.20x = 4,042,863.42
5. Step 5: Solve for x
   x = 4,042,863.42/2,527.20
6. Step 6: Final answer
   x = 1,599.74