Finding the Fourth Proportional to 1,408,485.52, 2,112,101.34 and 448,764.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408,485.52 : 2,112,101.34 = 448,764.76 : x
2. Step 2: Convert to fraction form
   1,408,485.52/2,112,101.34 = 448,764.76/x
3. Step 3: Cross multiply
   1,408,485.52x = 2,112,101.34 × 448,764.76
4. Step 4: Simplify right side
   1,408,485.52x = 947,836,650,940.78
5. Step 5: Solve for x
   x = 947,836,650,940.78/1,408,485.52
6. Step 6: Final answer
   x = 672,947.39