Finding the Fourth Proportional to 3,900.50, 5,851.71 and 1,164.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.50 : 5,851.71 = 1,164.50 : x
2. Step 2: Convert to fraction form
   3,900.50/5,851.71 = 1,164.50/x
3. Step 3: Cross multiply
   3,900.50x = 5,851.71 × 1,164.50
4. Step 4: Simplify right side
   3,900.50x = 6,814,316.30
5. Step 5: Solve for x
   x = 6,814,316.30/3,900.50
6. Step 6: Final answer
   x = 1,747.04