Finding the Fourth Proportional to 3,945.60, 5,918.50 and 1,348.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.60 : 5,918.50 = 1,348.50 : x
2. Step 2: Convert to fraction form
   3,945.60/5,918.50 = 1,348.50/x
3. Step 3: Cross multiply
   3,945.60x = 5,918.50 × 1,348.50
4. Step 4: Simplify right side
   3,945.60x = 7,981,097.25
5. Step 5: Solve for x
   x = 7,981,097.25/3,945.60
6. Step 6: Final answer
   x = 2,022.78