Finding the Fourth Proportional to 1,574.46, 2,170.50 and 1,131.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,574.46 : 2,170.50 = 1,131.54 : x
2. Step 2: Convert to fraction form
   1,574.46/2,170.50 = 1,131.54/x
3. Step 3: Cross multiply
   1,574.46x = 2,170.50 × 1,131.54
4. Step 4: Simplify right side
   1,574.46x = 2,456,007.57
5. Step 5: Solve for x
   x = 2,456,007.57/1,574.46
6. Step 6: Final answer
   x = 1,559.90