Finding the Fourth Proportional to 1,433.02, 1,977.60 and 803.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.02 : 1,977.60 = 803.54 : x
2. Step 2: Convert to fraction form
   1,433.02/1,977.60 = 803.54/x
3. Step 3: Cross multiply
   1,433.02x = 1,977.60 × 803.54
4. Step 4: Simplify right side
   1,433.02x = 1,589,080.70
5. Step 5: Solve for x
   x = 1,589,080.70/1,433.02
6. Step 6: Final answer
   x = 1,108.90