Finding the Fourth Proportional to 1,242,846.38, 1,855,196.33 and 1,066,486.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242,846.38 : 1,855,196.33 = 1,066,486.70 : x
2. Step 2: Convert to fraction form
   1,242,846.38/1,855,196.33 = 1,066,486.70/x
3. Step 3: Cross multiply
   1,242,846.38x = 1,855,196.33 × 1,066,486.70
4. Step 4: Simplify right side
   1,242,846.38x = 1,978,542,211,139.37
5. Step 5: Solve for x
   x = 1,978,542,211,139.37/1,242,846.38
6. Step 6: Final answer
   x = 1,591,944.30