Finding the Fourth Proportional to 1,189,130.46, 1,638,306.71 and 1,132,443.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189,130.46 : 1,638,306.71 = 1,132,443.42 : x
2. Step 2: Convert to fraction form
   1,189,130.46/1,638,306.71 = 1,132,443.42/x
3. Step 3: Cross multiply
   1,189,130.46x = 1,638,306.71 × 1,132,443.42
4. Step 4: Simplify right side
   1,189,130.46x = 1,855,289,655,563.96
5. Step 5: Solve for x
   x = 1,855,289,655,563.96/1,189,130.46
6. Step 6: Final answer
   x = 1,560,206.99