Finding the Fourth Proportional to 3,595.28, 5,389.71 and 1,405.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,595.28 : 5,389.71 = 1,405.53 : x
2. Step 2: Convert to fraction form
   3,595.28/5,389.71 = 1,405.53/x
3. Step 3: Cross multiply
   3,595.28x = 5,389.71 × 1,405.53
4. Step 4: Simplify right side
   3,595.28x = 7,575,399.10
5. Step 5: Solve for x
   x = 7,575,399.10/3,595.28
6. Step 6: Final answer
   x = 2,107.04