Finding the Fourth Proportional to 2,584.43, 3,566.55 and 1,405.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,584.43 : 3,566.55 = 1,405.53 : x
2. Step 2: Convert to fraction form
   2,584.43/3,566.55 = 1,405.53/x
3. Step 3: Cross multiply
   2,584.43x = 3,566.55 × 1,405.53
4. Step 4: Simplify right side
   2,584.43x = 5,012,893.02
5. Step 5: Solve for x
   x = 5,012,893.02/2,584.43
6. Step 6: Final answer
   x = 1,939.66