Finding the Fourth Proportional to 3,581.69, 5,373.81 and 1,607.13

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581.69 : 5,373.81 = 1,607.13 : x
2. Step 2: Convert to fraction form
   3,581.69/5,373.81 = 1,607.13/x
3. Step 3: Cross multiply
   3,581.69x = 5,373.81 × 1,607.13
4. Step 4: Simplify right side
   3,581.69x = 8,636,411.27
5. Step 5: Solve for x
   x = 8,636,411.27/3,581.69
6. Step 6: Final answer
   x = 2,411.27