Finding the Fourth Proportional to 3,606.86, 5,405.55 and 1,850.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,606.86 : 5,405.55 = 1,850.37 : x
2. Step 2: Convert to fraction form
   3,606.86/5,405.55 = 1,850.37/x
3. Step 3: Cross multiply
   3,606.86x = 5,405.55 × 1,850.37
4. Step 4: Simplify right side
   3,606.86x = 10,002,267.55
5. Step 5: Solve for x
   x = 10,002,267.55/3,606.86
6. Step 6: Final answer
   x = 2,773.13