Finding the Fourth Proportional to 1,019.03, 1,538.24 and 1,008.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.03 : 1,538.24 = 1,008.09 : x
2. Step 2: Convert to fraction form
   1,019.03/1,538.24 = 1,008.09/x
3. Step 3: Cross multiply
   1,019.03x = 1,538.24 × 1,008.09
4. Step 4: Simplify right side
   1,019.03x = 1,550,679.32
5. Step 5: Solve for x
   x = 1,550,679.32/1,019.03
6. Step 6: Final answer
   x = 1,521.73