Finding the Fourth Proportional to 626,545.83, 864,633.89 and 340,065.98

Step by Step Solution

1. Step 1: Write the proportion equation
   626,545.83 : 864,633.89 = 340,065.98 : x
2. Step 2: Convert to fraction form
   626,545.83/864,633.89 = 340,065.98/x
3. Step 3: Cross multiply
   626,545.83x = 864,633.89 × 340,065.98
4. Step 4: Simplify right side
   626,545.83x = 294,032,571,144.06
5. Step 5: Solve for x
   x = 294,032,571,144.06/626,545.83
6. Step 6: Final answer
   x = 469,291.40