Finding the Fourth Proportional to 1,581,561.16, 2,182,564.83 and 856,408.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581,561.16 : 2,182,564.83 = 856,408.86 : x
2. Step 2: Convert to fraction form
   1,581,561.16/2,182,564.83 = 856,408.86/x
3. Step 3: Cross multiply
   1,581,561.16x = 2,182,564.83 × 856,408.86
4. Step 4: Simplify right side
   1,581,561.16x = 1,869,167,857,936.39
5. Step 5: Solve for x
   x = 1,869,167,857,936.39/1,581,561.16
6. Step 6: Final answer
   x = 1,181,849.87