Finding the Fourth Proportional to 1,485.98, 2,050.68 and 822.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.98 : 2,050.68 = 822.82 : x
2. Step 2: Convert to fraction form
   1,485.98/2,050.68 = 822.82/x
3. Step 3: Cross multiply
   1,485.98x = 2,050.68 × 822.82
4. Step 4: Simplify right side
   1,485.98x = 1,687,340.52
5. Step 5: Solve for x
   x = 1,687,340.52/1,485.98
6. Step 6: Final answer
   x = 1,135.51