Finding the Fourth Proportional to 2,112,007.05, 3,166,961.43 and 672,502.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112,007.05 : 3,166,961.43 = 672,502.53 : x
2. Step 2: Convert to fraction form
   2,112,007.05/3,166,961.43 = 672,502.53/x
3. Step 3: Cross multiply
   2,112,007.05x = 3,166,961.43 × 672,502.53
4. Step 4: Simplify right side
   2,112,007.05x = 2,129,789,574,087.42
5. Step 5: Solve for x
   x = 2,129,789,574,087.42/2,112,007.05
6. Step 6: Final answer
   x = 1,008,419.73