Finding the Fourth Proportional to 2,231,540, 3,079,528.80 and 1,212,942.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231,540 : 3,079,528.80 = 1,212,942.32 : x
2. Step 2: Convert to fraction form
   2,231,540/3,079,528.80 = 1,212,942.32/x
3. Step 3: Cross multiply
   2,231,540x = 3,079,528.80 × 1,212,942.32
4. Step 4: Simplify right side
   2,231,540x = 3,735,290,807,178.82
5. Step 5: Solve for x
   x = 3,735,290,807,178.82/2,231,540
6. Step 6: Final answer
   x = 1,673,862.36