Finding the Fourth Proportional to 3,928.82, 5,422.30 and 2,535.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,928.82 : 5,422.30 = 2,535.62 : x
2. Step 2: Convert to fraction form
   3,928.82/5,422.30 = 2,535.62/x
3. Step 3: Cross multiply
   3,928.82x = 5,422.30 × 2,535.62
4. Step 4: Simplify right side
   3,928.82x = 13,748,892.33
5. Step 5: Solve for x
   x = 13,748,892.33/3,928.82
6. Step 6: Final answer
   x = 3,499.50