Finding the Fourth Proportional to 3,011.37, 4,155.69 and 1,685.13

Step by Step Solution

1. Step 1: Write the proportion equation
   3,011.37 : 4,155.69 = 1,685.13 : x
2. Step 2: Convert to fraction form
   3,011.37/4,155.69 = 1,685.13/x
3. Step 3: Cross multiply
   3,011.37x = 4,155.69 × 1,685.13
4. Step 4: Simplify right side
   3,011.37x = 7,002,877.89
5. Step 5: Solve for x
   x = 7,002,877.89/3,011.37
6. Step 6: Final answer
   x = 2,325.48