Finding the Fourth Proportional to 3,770.00, 5,632.67 and 3,640.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,770.00 : 5,632.67 = 3,640.80 : x
2. Step 2: Convert to fraction form
   3,770.00/5,632.67 = 3,640.80/x
3. Step 3: Cross multiply
   3,770.00x = 5,632.67 × 3,640.80
4. Step 4: Simplify right side
   3,770.00x = 20,507,434.04
5. Step 5: Solve for x
   x = 20,507,434.04/3,770.00
6. Step 6: Final answer
   x = 5,439.64