Finding the Fourth Proportional to 2,631,139.31, 3,946,709.13 and 636,595.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631,139.31 : 3,946,709.13 = 636,595.31 : x
2. Step 2: Convert to fraction form
   2,631,139.31/3,946,709.13 = 636,595.31/x
3. Step 3: Cross multiply
   2,631,139.31x = 3,946,709.13 × 636,595.31
4. Step 4: Simplify right side
   2,631,139.31x = 2,512,456,529,571.72
5. Step 5: Solve for x
   x = 2,512,456,529,571.72/2,631,139.31
6. Step 6: Final answer
   x = 954,893.01