Finding the Fourth Proportional to 626,917.82, 865,139.00 and 340,439.94

Step by Step Solution

1. Step 1: Write the proportion equation
   626,917.82 : 865,139.00 = 340,439.94 : x
2. Step 2: Convert to fraction form
   626,917.82/865,139.00 = 340,439.94/x
3. Step 3: Cross multiply
   626,917.82x = 865,139.00 × 340,439.94
4. Step 4: Simplify right side
   626,917.82x = 294,527,867,549.46
5. Step 5: Solve for x
   x = 294,527,867,549.46/626,917.82
6. Step 6: Final answer
   x = 469,803.00