Finding the Fourth Proportional to 2,789,571, 4,184,356.50 and 688,323

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789,571 : 4,184,356.50 = 688,323 : x
2. Step 2: Convert to fraction form
   2,789,571/4,184,356.50 = 688,323/x
3. Step 3: Cross multiply
   2,789,571x = 4,184,356.50 × 688,323
4. Step 4: Simplify right side
   2,789,571x = 2,880,188,819,149.50
5. Step 5: Solve for x
   x = 2,880,188,819,149.50/2,789,571
6. Step 6: Final answer
   x = 1,032,484.50