Finding the Fourth Proportional to 3,209,443.02, 4,429,485 and 1,986,142.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,209,443.02 : 4,429,485 = 1,986,142.55 : x
2. Step 2: Convert to fraction form
   3,209,443.02/4,429,485 = 1,986,142.55/x
3. Step 3: Cross multiply
   3,209,443.02x = 4,429,485 × 1,986,142.55
4. Step 4: Simplify right side
   3,209,443.02x = 8,797,588,610,939.32
5. Step 5: Solve for x
   x = 8,797,588,610,939.32/3,209,443.02
6. Step 6: Final answer
   x = 2,741,157.44