Finding the Fourth Proportional to 1,428.52, 1,972.47 and 1,096.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428.52 : 1,972.47 = 1,096.42 : x
2. Step 2: Convert to fraction form
   1,428.52/1,972.47 = 1,096.42/x
3. Step 3: Cross multiply
   1,428.52x = 1,972.47 × 1,096.42
4. Step 4: Simplify right side
   1,428.52x = 2,162,655.56
5. Step 5: Solve for x
   x = 2,162,655.56/1,428.52
6. Step 6: Final answer
   x = 1,513.91