Finding the Fourth Proportional to 1,266,604.56, 1,747,919.88 and 693,648.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,266,604.56 : 1,747,919.88 = 693,648.72 : x
2. Step 2: Convert to fraction form
   1,266,604.56/1,747,919.88 = 693,648.72/x
3. Step 3: Cross multiply
   1,266,604.56x = 1,747,919.88 × 693,648.72
4. Step 4: Simplify right side
   1,266,604.56x = 1,212,442,387,424.55
5. Step 5: Solve for x
   x = 1,212,442,387,424.55/1,266,604.56
6. Step 6: Final answer
   x = 957,238.29