Finding the Fourth Proportional to 1,557.42, 2,150.72 and 1,033.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,557.42 : 2,150.72 = 1,033.75 : x
2. Step 2: Convert to fraction form
   1,557.42/2,150.72 = 1,033.75/x
3. Step 3: Cross multiply
   1,557.42x = 2,150.72 × 1,033.75
4. Step 4: Simplify right side
   1,557.42x = 2,223,306.80
5. Step 5: Solve for x
   x = 2,223,306.80/1,557.42
6. Step 6: Final answer
   x = 1,427.56