Finding the Fourth Proportional to 1,382.01, 1,907.42 and 822.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.01 : 1,907.42 = 822.51 : x
2. Step 2: Convert to fraction form
   1,382.01/1,907.42 = 822.51/x
3. Step 3: Cross multiply
   1,382.01x = 1,907.42 × 822.51
4. Step 4: Simplify right side
   1,382.01x = 1,568,867.91
5. Step 5: Solve for x
   x = 1,568,867.91/1,382.01
6. Step 6: Final answer
   x = 1,135.21