Finding the Fourth Proportional to 1,433.10, 1,977.69 and 803.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.10 : 1,977.69 = 803.67 : x
2. Step 2: Convert to fraction form
   1,433.10/1,977.69 = 803.67/x
3. Step 3: Cross multiply
   1,433.10x = 1,977.69 × 803.67
4. Step 4: Simplify right side
   1,433.10x = 1,589,410.12
5. Step 5: Solve for x
   x = 1,589,410.12/1,433.10
6. Step 6: Final answer
   x = 1,109.07