Finding the Fourth Proportional to 1,485.69, 2,050.23 and 822.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.69 : 2,050.23 = 822.53 : x
2. Step 2: Convert to fraction form
   1,485.69/2,050.23 = 822.53/x
3. Step 3: Cross multiply
   1,485.69x = 2,050.23 × 822.53
4. Step 4: Simplify right side
   1,485.69x = 1,686,365.43
5. Step 5: Solve for x
   x = 1,686,365.43/1,485.69
6. Step 6: Final answer
   x = 1,135.08