Finding the Fourth Proportional to 3,735.89, 5,155.35 and 2,164.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,735.89 : 5,155.35 = 2,164.49 : x
2. Step 2: Convert to fraction form
   3,735.89/5,155.35 = 2,164.49/x
3. Step 3: Cross multiply
   3,735.89x = 5,155.35 × 2,164.49
4. Step 4: Simplify right side
   3,735.89x = 11,158,703.52
5. Step 5: Solve for x
   x = 11,158,703.52/3,735.89
6. Step 6: Final answer
   x = 2,986.89