Finding the Fourth Proportional to 2,575.35, 3,553.97 and 1,396.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,575.35 : 3,553.97 = 1,396.43 : x
2. Step 2: Convert to fraction form
   2,575.35/3,553.97 = 1,396.43/x
3. Step 3: Cross multiply
   2,575.35x = 3,553.97 × 1,396.43
4. Step 4: Simplify right side
   2,575.35x = 4,962,870.33
5. Step 5: Solve for x
   x = 4,962,870.33/2,575.35
6. Step 6: Final answer
   x = 1,927.07