Finding the Fourth Proportional to 1,485.32, 2,049.74 and 822.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.32 : 2,049.74 = 822.16 : x
2. Step 2: Convert to fraction form
   1,485.32/2,049.74 = 822.16/x
3. Step 3: Cross multiply
   1,485.32x = 2,049.74 × 822.16
4. Step 4: Simplify right side
   1,485.32x = 1,685,212.69
5. Step 5: Solve for x
   x = 1,685,212.69/1,485.32
6. Step 6: Final answer
   x = 1,134.58