Finding the Fourth Proportional to 3,523.12, 5,284.72 and 926.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,523.12 : 5,284.72 = 926.32 : x
2. Step 2: Convert to fraction form
   3,523.12/5,284.72 = 926.32/x
3. Step 3: Cross multiply
   3,523.12x = 5,284.72 × 926.32
4. Step 4: Simplify right side
   3,523.12x = 4,895,341.83
5. Step 5: Solve for x
   x = 4,895,341.83/3,523.12
6. Step 6: Final answer
   x = 1,389.49