Finding the Fourth Proportional to 3,589.47, 5,381.82 and 1,398.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,589.47 : 5,381.82 = 1,398.42 : x
2. Step 2: Convert to fraction form
   3,589.47/5,381.82 = 1,398.42/x
3. Step 3: Cross multiply
   3,589.47x = 5,381.82 × 1,398.42
4. Step 4: Simplify right side
   3,589.47x = 7,526,044.72
5. Step 5: Solve for x
   x = 7,526,044.72/3,589.47
6. Step 6: Final answer
   x = 2,096.70