Finding the Fourth Proportional to 1,267.42, 1,900.56 and 574.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267.42 : 1,900.56 = 574.06 : x
2. Step 2: Convert to fraction form
   1,267.42/1,900.56 = 574.06/x
3. Step 3: Cross multiply
   1,267.42x = 1,900.56 × 574.06
4. Step 4: Simplify right side
   1,267.42x = 1,091,025.97
5. Step 5: Solve for x
   x = 1,091,025.97/1,267.42
6. Step 6: Final answer
   x = 860.83