Finding the Fourth Proportional to 2,076,958.80, 3,113,105.40 and 878,677.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076,958.80 : 3,113,105.40 = 878,677.20 : x
2. Step 2: Convert to fraction form
   2,076,958.80/3,113,105.40 = 878,677.20/x
3. Step 3: Cross multiply
   2,076,958.80x = 3,113,105.40 × 878,677.20
4. Step 4: Simplify right side
   2,076,958.80x = 2,735,414,736,176.88
5. Step 5: Solve for x
   x = 2,735,414,736,176.88/2,076,958.80
6. Step 6: Final answer
   x = 1,317,028.89