Finding the Fourth Proportional to 1,033.31, 1,426.02 and 1,019.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,033.31 : 1,426.02 = 1,019.54 : x
2. Step 2: Convert to fraction form
   1,033.31/1,426.02 = 1,019.54/x
3. Step 3: Cross multiply
   1,033.31x = 1,426.02 × 1,019.54
4. Step 4: Simplify right side
   1,033.31x = 1,453,884.43
5. Step 5: Solve for x
   x = 1,453,884.43/1,033.31
6. Step 6: Final answer
   x = 1,407.02