Finding the Fourth Proportional to 1,392,141.30, 2,085,101.55 and 1,143,309.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392,141.30 : 2,085,101.55 = 1,143,309.30 : x
2. Step 2: Convert to fraction form
   1,392,141.30/2,085,101.55 = 1,143,309.30/x
3. Step 3: Cross multiply
   1,392,141.30x = 2,085,101.55 × 1,143,309.30
4. Step 4: Simplify right side
   1,392,141.30x = 2,383,915,993,559.42
5. Step 5: Solve for x
   x = 2,383,915,993,559.42/1,392,141.30
6. Step 6: Final answer
   x = 1,712,409.50