Finding the Fourth Proportional to 3,900.48, 5,851.68 and 3,470.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.48 : 5,851.68 = 3,470.40 : x
2. Step 2: Convert to fraction form
   3,900.48/5,851.68 = 3,470.40/x
3. Step 3: Cross multiply
   3,900.48x = 5,851.68 × 3,470.40
4. Step 4: Simplify right side
   3,900.48x = 20,307,670.27
5. Step 5: Solve for x
   x = 20,307,670.27/3,900.48
6. Step 6: Final answer
   x = 5,206.45