Finding the Fourth Proportional to 1,359,780.37, 2,039,448.82 and 400,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359,780.37 : 2,039,448.82 = 400,011.50 : x
2. Step 2: Convert to fraction form
   1,359,780.37/2,039,448.82 = 400,011.50/x
3. Step 3: Cross multiply
   1,359,780.37x = 2,039,448.82 × 400,011.50
4. Step 4: Simplify right side
   1,359,780.37x = 815,802,981,661.43
5. Step 5: Solve for x
   x = 815,802,981,661.43/1,359,780.37
6. Step 6: Final answer
   x = 599,952.02