Finding the Fourth Proportional to 3,940.83, 5,912.60 and 1,345.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940.83 : 5,912.60 = 1,345.59 : x
2. Step 2: Convert to fraction form
   3,940.83/5,912.60 = 1,345.59/x
3. Step 3: Cross multiply
   3,940.83x = 5,912.60 × 1,345.59
4. Step 4: Simplify right side
   3,940.83x = 7,955,928.71
5. Step 5: Solve for x
   x = 7,955,928.71/3,940.83
6. Step 6: Final answer
   x = 2,018.85