Finding the Fourth Proportional to 1,485.63, 2,050.17 and 822.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.63 : 2,050.17 = 822.54 : x
2. Step 2: Convert to fraction form
   1,485.63/2,050.17 = 822.54/x
3. Step 3: Cross multiply
   1,485.63x = 2,050.17 × 822.54
4. Step 4: Simplify right side
   1,485.63x = 1,686,346.83
5. Step 5: Solve for x
   x = 1,686,346.83/1,485.63
6. Step 6: Final answer
   x = 1,135.11