Finding the Fourth Proportional to 1,433.32, 1,977.90 and 843.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.32 : 1,977.90 = 843.82 : x
2. Step 2: Convert to fraction form
   1,433.32/1,977.90 = 843.82/x
3. Step 3: Cross multiply
   1,433.32x = 1,977.90 × 843.82
4. Step 4: Simplify right side
   1,433.32x = 1,668,991.58
5. Step 5: Solve for x
   x = 1,668,991.58/1,433.32
6. Step 6: Final answer
   x = 1,164.42