Finding the Fourth Proportional to 1,399.41, 1,931.99 and 927.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399.41 : 1,931.99 = 927.18 : x
2. Step 2: Convert to fraction form
   1,399.41/1,931.99 = 927.18/x
3. Step 3: Cross multiply
   1,399.41x = 1,931.99 × 927.18
4. Step 4: Simplify right side
   1,399.41x = 1,791,297.85
5. Step 5: Solve for x
   x = 1,791,297.85/1,399.41
6. Step 6: Final answer
   x = 1,280.04