Finding the Fourth Proportional to 2,315.82, 3,473.72 and 928.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.82 : 3,473.72 = 928.17 : x
2. Step 2: Convert to fraction form
   2,315.82/3,473.72 = 928.17/x
3. Step 3: Cross multiply
   2,315.82x = 3,473.72 × 928.17
4. Step 4: Simplify right side
   2,315.82x = 3,224,205.01
5. Step 5: Solve for x
   x = 3,224,205.01/2,315.82
6. Step 6: Final answer
   x = 1,392.25