Finding the Fourth Proportional to 1,480.16, 2,219.52 and 931.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,480.16 : 2,219.52 = 931.52 : x
2. Step 2: Convert to fraction form
   1,480.16/2,219.52 = 931.52/x
3. Step 3: Cross multiply
   1,480.16x = 2,219.52 × 931.52
4. Step 4: Simplify right side
   1,480.16x = 2,067,527.27
5. Step 5: Solve for x
   x = 2,067,527.27/1,480.16
6. Step 6: Final answer
   x = 1,396.83