Finding the Fourth Proportional to 2,139,361.50, 2,951,790.33 and 1,268,400.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,361.50 : 2,951,790.33 = 1,268,400.51 : x
2. Step 2: Convert to fraction form
   2,139,361.50/2,951,790.33 = 1,268,400.51/x
3. Step 3: Cross multiply
   2,139,361.50x = 2,951,790.33 × 1,268,400.51
4. Step 4: Simplify right side
   2,139,361.50x = 3,744,052,359,985.07
5. Step 5: Solve for x
   x = 3,744,052,359,985.07/2,139,361.50
6. Step 6: Final answer
   x = 1,750,079.34