Finding the Fourth Proportional to 1,915.36, 2,640.56 and 1,471.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915.36 : 2,640.56 = 1,471.52 : x
2. Step 2: Convert to fraction form
   1,915.36/2,640.56 = 1,471.52/x
3. Step 3: Cross multiply
   1,915.36x = 2,640.56 × 1,471.52
4. Step 4: Simplify right side
   1,915.36x = 3,885,636.85
5. Step 5: Solve for x
   x = 3,885,636.85/1,915.36
6. Step 6: Final answer
   x = 2,028.67