Finding the Fourth Proportional to 2,854,112.56, 4,280,753.71 and 831,813.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,854,112.56 : 4,280,753.71 = 831,813.60 : x
2. Step 2: Convert to fraction form
   2,854,112.56/4,280,753.71 = 831,813.60/x
3. Step 3: Cross multiply
   2,854,112.56x = 4,280,753.71 × 831,813.60
4. Step 4: Simplify right side
   2,854,112.56x = 3,560,789,171,321.05
5. Step 5: Solve for x
   x = 3,560,789,171,321.05/2,854,112.56
6. Step 6: Final answer
   x = 1,247,599.42