Finding the Fourth Proportional to 1,560,857.42, 2,338,836.69 and 929,426.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,560,857.42 : 2,338,836.69 = 929,426.78 : x
2. Step 2: Convert to fraction form
   1,560,857.42/2,338,836.69 = 929,426.78/x
3. Step 3: Cross multiply
   1,560,857.42x = 2,338,836.69 × 929,426.78
4. Step 4: Simplify right side
   1,560,857.42x = 2,173,777,453,732.56
5. Step 5: Solve for x
   x = 2,173,777,453,732.56/1,560,857.42
6. Step 6: Final answer
   x = 1,392,681.63