Finding the Fourth Proportional to 1,408,002.69, 2,111,304.62 and 448,333.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408,002.69 : 2,111,304.62 = 448,333.01 : x
2. Step 2: Convert to fraction form
   1,408,002.69/2,111,304.62 = 448,333.01/x
3. Step 3: Cross multiply
   1,408,002.69x = 2,111,304.62 × 448,333.01
4. Step 4: Simplify right side
   1,408,002.69x = 946,567,555,311.51
5. Step 5: Solve for x
   x = 946,567,555,311.51/1,408,002.69
6. Step 6: Final answer
   x = 672,276.81