Finding the Fourth Proportional to 3,476.38, 5,215.78 and 1,528.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,476.38 : 5,215.78 = 1,528.32 : x
2. Step 2: Convert to fraction form
   3,476.38/5,215.78 = 1,528.32/x
3. Step 3: Cross multiply
   3,476.38x = 5,215.78 × 1,528.32
4. Step 4: Simplify right side
   3,476.38x = 7,971,380.89
5. Step 5: Solve for x
   x = 7,971,380.89/3,476.38
6. Step 6: Final answer
   x = 2,293.01