Finding the Fourth Proportional to 1,014.87, 1,399.05 and 874.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014.87 : 1,399.05 = 874.38 : x
2. Step 2: Convert to fraction form
   1,014.87/1,399.05 = 874.38/x
3. Step 3: Cross multiply
   1,014.87x = 1,399.05 × 874.38
4. Step 4: Simplify right side
   1,014.87x = 1,223,301.34
5. Step 5: Solve for x
   x = 1,223,301.34/1,014.87
6. Step 6: Final answer
   x = 1,205.38