Finding the Fourth Proportional to 3,011.72, 4,155.98 and 1,685.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,011.72 : 4,155.98 = 1,685.41 : x
2. Step 2: Convert to fraction form
   3,011.72/4,155.98 = 1,685.41/x
3. Step 3: Cross multiply
   3,011.72x = 4,155.98 × 1,685.41
4. Step 4: Simplify right side
   3,011.72x = 7,004,511.43
5. Step 5: Solve for x
   x = 7,004,511.43/3,011.72
6. Step 6: Final answer
   x = 2,325.76