Finding the Fourth Proportional to 3,589.31, 5,382.93 and 1,397.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,589.31 : 5,382.93 = 1,397.55 : x
2. Step 2: Convert to fraction form
   3,589.31/5,382.93 = 1,397.55/x
3. Step 3: Cross multiply
   3,589.31x = 5,382.93 × 1,397.55
4. Step 4: Simplify right side
   3,589.31x = 7,522,906.83
5. Step 5: Solve for x
   x = 7,522,906.83/3,589.31
6. Step 6: Final answer
   x = 2,095.92