Finding the Fourth Proportional to 2,112,011.55, 3,166,968.18 and 672,507.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112,011.55 : 3,166,968.18 = 672,507.03 : x
2. Step 2: Convert to fraction form
   2,112,011.55/3,166,968.18 = 672,507.03/x
3. Step 3: Cross multiply
   2,112,011.55x = 3,166,968.18 × 672,507.03
4. Step 4: Simplify right side
   2,112,011.55x = 2,129,808,364,836.31
5. Step 5: Solve for x
   x = 2,129,808,364,836.31/2,112,011.55
6. Step 6: Final answer
   x = 1,008,426.48