Finding the Fourth Proportional to 1,096.32, 1,642.84 and 1,015.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.32 : 1,642.84 = 1,015.32 : x
2. Step 2: Convert to fraction form
   1,096.32/1,642.84 = 1,015.32/x
3. Step 3: Cross multiply
   1,096.32x = 1,642.84 × 1,015.32
4. Step 4: Simplify right side
   1,096.32x = 1,668,008.31
5. Step 5: Solve for x
   x = 1,668,008.31/1,096.32
6. Step 6: Final answer
   x = 1,521.46