Finding the Fourth Proportional to 2,392.32, 3,300.96 and 1,397.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,392.32 : 3,300.96 = 1,397.76 : x
2. Step 2: Convert to fraction form
   2,392.32/3,300.96 = 1,397.76/x
3. Step 3: Cross multiply
   2,392.32x = 3,300.96 × 1,397.76
4. Step 4: Simplify right side
   2,392.32x = 4,613,949.85
5. Step 5: Solve for x
   x = 4,613,949.85/2,392.32
6. Step 6: Final answer
   x = 1,928.65