Finding the Fourth Proportional to 2,384,641.72, 3,576,984.21 and 678,784.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,384,641.72 : 3,576,984.21 = 678,784.35 : x
2. Step 2: Convert to fraction form
   2,384,641.72/3,576,984.21 = 678,784.35/x
3. Step 3: Cross multiply
   2,384,641.72x = 3,576,984.21 × 678,784.35
4. Step 4: Simplify right side
   2,384,641.72x = 2,428,000,901,945.11
5. Step 5: Solve for x
   x = 2,428,000,901,945.11/2,384,641.72
6. Step 6: Final answer
   x = 1,018,182.68