Finding the Fourth Proportional to 3,209,443.52, 4,429,485.69 and 1,986,143.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,209,443.52 : 4,429,485.69 = 1,986,143.05 : x
2. Step 2: Convert to fraction form
   3,209,443.52/4,429,485.69 = 1,986,143.05/x
3. Step 3: Cross multiply
   3,209,443.52x = 4,429,485.69 × 1,986,143.05
4. Step 4: Simplify right side
   3,209,443.52x = 8,797,592,196,120.53
5. Step 5: Solve for x
   x = 8,797,592,196,120.53/3,209,443.52
6. Step 6: Final answer
   x = 2,741,158.13