Finding the Fourth Proportional to 1,788.16, 2,467.56 and 1,042.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.16 : 2,467.56 = 1,042.24 : x
2. Step 2: Convert to fraction form
   1,788.16/2,467.56 = 1,042.24/x
3. Step 3: Cross multiply
   1,788.16x = 2,467.56 × 1,042.24
4. Step 4: Simplify right side
   1,788.16x = 2,571,789.73
5. Step 5: Solve for x
   x = 2,571,789.73/1,788.16
6. Step 6: Final answer
   x = 1,438.23