Finding the Fourth Proportional to 2,266,851.89, 3,400,726.55 and 647,634.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,266,851.89 : 3,400,726.55 = 647,634.50 : x
2. Step 2: Convert to fraction form
   2,266,851.89/3,400,726.55 = 647,634.50/x
3. Step 3: Cross multiply
   2,266,851.89x = 3,400,726.55 × 647,634.50
4. Step 4: Simplify right side
   2,266,851.89x = 2,202,427,848,966.88
5. Step 5: Solve for x
   x = 2,202,427,848,966.88/2,266,851.89
6. Step 6: Final answer
   x = 971,579.95