Finding the Fourth Proportional to 2,311,401.79, 3,189,828.48 and 1,278,892.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311,401.79 : 3,189,828.48 = 1,278,892.78 : x
2. Step 2: Convert to fraction form
   2,311,401.79/3,189,828.48 = 1,278,892.78/x
3. Step 3: Cross multiply
   2,311,401.79x = 3,189,828.48 × 1,278,892.78
4. Step 4: Simplify right side
   2,311,401.79x = 4,079,448,590,166.77
5. Step 5: Solve for x
   x = 4,079,448,590,166.77/2,311,401.79
6. Step 6: Final answer
   x = 1,764,924.05