Finding the Fourth Proportional to 1,550,359.68, 2,139,015.51 and 905,314.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550,359.68 : 2,139,015.51 = 905,314.56 : x
2. Step 2: Convert to fraction form
   1,550,359.68/2,139,015.51 = 905,314.56/x
3. Step 3: Cross multiply
   1,550,359.68x = 2,139,015.51 × 905,314.56
4. Step 4: Simplify right side
   1,550,359.68x = 1,936,481,885,268.83
5. Step 5: Solve for x
   x = 1,936,481,885,268.83/1,550,359.68
6. Step 6: Final answer
   x = 1,249,053.31