Finding the Fourth Proportional to 1,837,764.72, 2,757,436.02 and 639,033.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,837,764.72 : 2,757,436.02 = 639,033.30 : x
2. Step 2: Convert to fraction form
   1,837,764.72/2,757,436.02 = 639,033.30/x
3. Step 3: Cross multiply
   1,837,764.72x = 2,757,436.02 × 639,033.30
4. Step 4: Simplify right side
   1,837,764.72x = 1,762,093,439,399.47
5. Step 5: Solve for x
   x = 1,762,093,439,399.47/1,837,764.72
6. Step 6: Final answer
   x = 958,824.28