Finding the Fourth Proportional to 1,647,607.42, 2,471,805.72 and 687,528.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647,607.42 : 2,471,805.72 = 687,528.96 : x
2. Step 2: Convert to fraction form
   1,647,607.42/2,471,805.72 = 687,528.96/x
3. Step 3: Cross multiply
   1,647,607.42x = 2,471,805.72 × 687,528.96
4. Step 4: Simplify right side
   1,647,607.42x = 1,699,438,008,780.78
5. Step 5: Solve for x
   x = 1,699,438,008,780.78/1,647,607.42
6. Step 6: Final answer
   x = 1,031,458.09