Finding the Fourth Proportional to 754,561.05, 1,040,766.62 and 512,422.89

Step by Step Solution

1. Step 1: Write the proportion equation
   754,561.05 : 1,040,766.62 = 512,422.89 : x
2. Step 2: Convert to fraction form
   754,561.05/1,040,766.62 = 512,422.89/x
3. Step 3: Cross multiply
   754,561.05x = 1,040,766.62 × 512,422.89
4. Step 4: Simplify right side
   754,561.05x = 533,312,636,673.82
5. Step 5: Solve for x
   x = 533,312,636,673.82/754,561.05
6. Step 6: Final answer
   x = 706,785.27