Finding the Fourth Proportional to 2,627,056.80, 3,940,293.60 and 2,152,915.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,627,056.80 : 3,940,293.60 = 2,152,915.20 : x
2. Step 2: Convert to fraction form
   2,627,056.80/3,940,293.60 = 2,152,915.20/x
3. Step 3: Cross multiply
   2,627,056.80x = 3,940,293.60 × 2,152,915.20
4. Step 4: Simplify right side
   2,627,056.80x = 8,483,117,983,902.72
5. Step 5: Solve for x
   x = 8,483,117,983,902.72/2,627,056.80
6. Step 6: Final answer
   x = 3,229,133.83