Finding the Fourth Proportional to 2,112,456.78, 3,167,419.68 and 672,518.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112,456.78 : 3,167,419.68 = 672,518.16 : x
2. Step 2: Convert to fraction form
   2,112,456.78/3,167,419.68 = 672,518.16/x
3. Step 3: Cross multiply
   2,112,456.78x = 3,167,419.68 × 672,518.16
4. Step 4: Simplify right side
   2,112,456.78x = 2,130,147,255,141.39
5. Step 5: Solve for x
   x = 2,130,147,255,141.39/2,112,456.78
6. Step 6: Final answer
   x = 1,008,374.36