Finding the Fourth Proportional to 3,937.69, 5,906.52 and 1,340.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,937.69 : 5,906.52 = 1,340.63 : x
2. Step 2: Convert to fraction form
   3,937.69/5,906.52 = 1,340.63/x
3. Step 3: Cross multiply
   3,937.69x = 5,906.52 × 1,340.63
4. Step 4: Simplify right side
   3,937.69x = 7,918,431.73
5. Step 5: Solve for x
   x = 7,918,431.73/3,937.69
6. Step 6: Final answer
   x = 2,010.93