Finding the Fourth Proportional to 3,604.10, 5,405.30 and 1,382.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,604.10 : 5,405.30 = 1,382.15 : x
2. Step 2: Convert to fraction form
   3,604.10/5,405.30 = 1,382.15/x
3. Step 3: Cross multiply
   3,604.10x = 5,405.30 × 1,382.15
4. Step 4: Simplify right side
   3,604.10x = 7,470,901.46
5. Step 5: Solve for x
   x = 7,470,901.46/3,604.10
6. Step 6: Final answer
   x = 2,072.89