Finding the Fourth Proportional to 1,004.72, 1,499.62 and 842.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004.72 : 1,499.62 = 842.96 : x
2. Step 2: Convert to fraction form
   1,004.72/1,499.62 = 842.96/x
3. Step 3: Cross multiply
   1,004.72x = 1,499.62 × 842.96
4. Step 4: Simplify right side
   1,004.72x = 1,264,119.68
5. Step 5: Solve for x
   x = 1,264,119.68/1,004.72
6. Step 6: Final answer
   x = 1,258.18