Finding the Fourth Proportional to 1,433.67, 2,145.83 and 886.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.67 : 2,145.83 = 886.29 : x
2. Step 2: Convert to fraction form
   1,433.67/2,145.83 = 886.29/x
3. Step 3: Cross multiply
   1,433.67x = 2,145.83 × 886.29
4. Step 4: Simplify right side
   1,433.67x = 1,901,823.24
5. Step 5: Solve for x
   x = 1,901,823.24/1,433.67
6. Step 6: Final answer
   x = 1,326.54