Finding the Fourth Proportional to 2,643.39, 3,648.53 and 1,525

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.39 : 3,648.53 = 1,525 : x
2. Step 2: Convert to fraction form
   2,643.39/3,648.53 = 1,525/x
3. Step 3: Cross multiply
   2,643.39x = 3,648.53 × 1,525
4. Step 4: Simplify right side
   2,643.39x = 5,564,008.25
5. Step 5: Solve for x
   x = 5,564,008.25/2,643.39
6. Step 6: Final answer
   x = 2,104.88