Finding the Fourth Proportional to 2,188,886.22, 3,283,339.05 and 672,556.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188,886.22 : 3,283,339.05 = 672,556.50 : x
2. Step 2: Convert to fraction form
   2,188,886.22/3,283,339.05 = 672,556.50/x
3. Step 3: Cross multiply
   2,188,886.22x = 3,283,339.05 × 672,556.50
4. Step 4: Simplify right side
   2,188,886.22x = 2,208,231,019,781.32
5. Step 5: Solve for x
   x = 2,208,231,019,781.32/2,188,886.22
6. Step 6: Final answer
   x = 1,008,837.74