Finding the Fourth Proportional to 2,097,008.50, 3,145,520.96 and 638,069.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097,008.50 : 3,145,520.96 = 638,069.51 : x
2. Step 2: Convert to fraction form
   2,097,008.50/3,145,520.96 = 638,069.51/x
3. Step 3: Cross multiply
   2,097,008.50x = 3,145,520.96 × 638,069.51
4. Step 4: Simplify right side
   2,097,008.50x = 2,007,061,017,641.93
5. Step 5: Solve for x
   x = 2,007,061,017,641.93/2,097,008.50
6. Step 6: Final answer
   x = 957,106.76