Finding the Fourth Proportional to 1,268,401.91, 1,900,607.31 and 980,917.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,268,401.91 : 1,900,607.31 = 980,917.31 : x
2. Step 2: Convert to fraction form
   1,268,401.91/1,900,607.31 = 980,917.31/x
3. Step 3: Cross multiply
   1,268,401.91x = 1,900,607.31 × 980,917.31
4. Step 4: Simplify right side
   1,268,401.91x = 1,864,338,600,388.50
5. Step 5: Solve for x
   x = 1,864,338,600,388.50/1,268,401.91
6. Step 6: Final answer
   x = 1,469,832.70