Finding the Fourth Proportional to 1,063.38, 1,584.90 and 1,061.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,063.38 : 1,584.90 = 1,061.76 : x
2. Step 2: Convert to fraction form
   1,063.38/1,584.90 = 1,061.76/x
3. Step 3: Cross multiply
   1,063.38x = 1,584.90 × 1,061.76
4. Step 4: Simplify right side
   1,063.38x = 1,682,783.42
5. Step 5: Solve for x
   x = 1,682,783.42/1,063.38
6. Step 6: Final answer
   x = 1,582.49