Finding the Fourth Proportional to 1,076,674.55, 1,485,344.04 and 640,847.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076,674.55 : 1,485,344.04 = 640,847.50 : x
2. Step 2: Convert to fraction form
   1,076,674.55/1,485,344.04 = 640,847.50/x
3. Step 3: Cross multiply
   1,076,674.55x = 1,485,344.04 × 640,847.50
4. Step 4: Simplify right side
   1,076,674.55x = 951,879,004,042.94
5. Step 5: Solve for x
   x = 951,879,004,042.94/1,076,674.55
6. Step 6: Final answer
   x = 884,091.68