Finding the Fourth Proportional to 2,131,015.43, 3,197,784.25 and 784,123.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131,015.43 : 3,197,784.25 = 784,123.87 : x
2. Step 2: Convert to fraction form
   2,131,015.43/3,197,784.25 = 784,123.87/x
3. Step 3: Cross multiply
   2,131,015.43x = 3,197,784.25 × 784,123.87
4. Step 4: Simplify right side
   2,131,015.43x = 2,507,458,966,512.43
5. Step 5: Solve for x
   x = 2,507,458,966,512.43/2,131,015.43
6. Step 6: Final answer
   x = 1,176,649.84