Finding the Fourth Proportional to 2,631.09, 3,945.83 and 1,332.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.09 : 3,945.83 = 1,332.39 : x
2. Step 2: Convert to fraction form
   2,631.09/3,945.83 = 1,332.39/x
3. Step 3: Cross multiply
   2,631.09x = 3,945.83 × 1,332.39
4. Step 4: Simplify right side
   2,631.09x = 5,257,377.77
5. Step 5: Solve for x
   x = 5,257,377.77/2,631.09
6. Step 6: Final answer
   x = 1,998.17