Finding the Fourth Proportional to 1,360,069.68, 2,040,105.89 and 507,128.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360,069.68 : 2,040,105.89 = 507,128.29 : x
2. Step 2: Convert to fraction form
   1,360,069.68/2,040,105.89 = 507,128.29/x
3. Step 3: Cross multiply
   1,360,069.68x = 2,040,105.89 × 507,128.29
4. Step 4: Simplify right side
   1,360,069.68x = 1,034,595,419,057.78
5. Step 5: Solve for x
   x = 1,034,595,419,057.78/1,360,069.68
6. Step 6: Final answer
   x = 760,692.95