Finding the Fourth Proportional to 3,871.52, 5,808.32 and 1,274.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,871.52 : 5,808.32 = 1,274.56 : x
2. Step 2: Convert to fraction form
   3,871.52/5,808.32 = 1,274.56/x
3. Step 3: Cross multiply
   3,871.52x = 5,808.32 × 1,274.56
4. Step 4: Simplify right side
   3,871.52x = 7,403,052.34
5. Step 5: Solve for x
   x = 7,403,052.34/3,871.52
6. Step 6: Final answer
   x = 1,912.18