Finding the Fourth Proportional to 2,479,147.74, 3,421,223.81 and 1,391,419.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479,147.74 : 3,421,223.81 = 1,391,419.34 : x
2. Step 2: Convert to fraction form
   2,479,147.74/3,421,223.81 = 1,391,419.34/x
3. Step 3: Cross multiply
   2,479,147.74x = 3,421,223.81 × 1,391,419.34
4. Step 4: Simplify right side
   2,479,147.74x = 4,760,356,951,639.27
5. Step 5: Solve for x
   x = 4,760,356,951,639.27/2,479,147.74
6. Step 6: Final answer
   x = 1,920,158.64