Finding the Fourth Proportional to 1,408,162.41, 2,112,408.59 and 448,281.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408,162.41 : 2,112,408.59 = 448,281.72 : x
2. Step 2: Convert to fraction form
   1,408,162.41/2,112,408.59 = 448,281.72/x
3. Step 3: Cross multiply
   1,408,162.41x = 2,112,408.59 × 448,281.72
4. Step 4: Simplify right side
   1,408,162.41x = 946,954,153,826.57
5. Step 5: Solve for x
   x = 946,954,153,826.57/1,408,162.41
6. Step 6: Final answer
   x = 672,475.10