Finding the Fourth Proportional to 1,076,677.55, 1,485,348.17 and 640,850.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076,677.55 : 1,485,348.17 = 640,850.50 : x
2. Step 2: Convert to fraction form
   1,076,677.55/1,485,348.17 = 640,850.50/x
3. Step 3: Cross multiply
   1,076,677.55x = 1,485,348.17 × 640,850.50
4. Step 4: Simplify right side
   1,076,677.55x = 951,886,117,418.59
5. Step 5: Solve for x
   x = 951,886,117,418.59/1,076,677.55
6. Step 6: Final answer
   x = 884,095.82