Finding the Fourth Proportional to 2,161,786.35, 2,983,561.78 and 1,243,996.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,161,786.35 : 2,983,561.78 = 1,243,996.75 : x
2. Step 2: Convert to fraction form
   2,161,786.35/2,983,561.78 = 1,243,996.75/x
3. Step 3: Cross multiply
   2,161,786.35x = 2,983,561.78 × 1,243,996.75
4. Step 4: Simplify right side
   2,161,786.35x = 3,711,541,142,826.41
5. Step 5: Solve for x
   x = 3,711,541,142,826.41/2,161,786.35
6. Step 6: Final answer
   x = 1,716,886.20