Finding the Fourth Proportional to 647,758.59, 893,908.22 and 361,271.31

Step by Step Solution

1. Step 1: Write the proportion equation
   647,758.59 : 893,908.22 = 361,271.31 : x
2. Step 2: Convert to fraction form
   647,758.59/893,908.22 = 361,271.31/x
3. Step 3: Cross multiply
   647,758.59x = 893,908.22 × 361,271.31
4. Step 4: Simplify right side
   647,758.59x = 322,943,391,852.81
5. Step 5: Solve for x
   x = 322,943,391,852.81/647,758.59
6. Step 6: Final answer
   x = 498,555.17