Finding the Fourth Proportional to 1,238.12, 1,704.72 and 1,051.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238.12 : 1,704.72 = 1,051.24 : x
2. Step 2: Convert to fraction form
   1,238.12/1,704.72 = 1,051.24/x
3. Step 3: Cross multiply
   1,238.12x = 1,704.72 × 1,051.24
4. Step 4: Simplify right side
   1,238.12x = 1,792,069.85
5. Step 5: Solve for x
   x = 1,792,069.85/1,238.12
6. Step 6: Final answer
   x = 1,447.41