Finding the Fourth Proportional to 5,086.40, 7,627.31 and 1,964.00

Step by Step Solution

1. Step 1: Write the proportion equation
   5,086.40 : 7,627.31 = 1,964.00 : x
2. Step 2: Convert to fraction form
   5,086.40/7,627.31 = 1,964.00/x
3. Step 3: Cross multiply
   5,086.40x = 7,627.31 × 1,964.00
4. Step 4: Simplify right side
   5,086.40x = 14,980,021.60
5. Step 5: Solve for x
   x = 14,980,021.60/5,086.40
6. Step 6: Final answer
   x = 2,945.12