Finding the Fourth Proportional to 1,191,820.42, 1,644,744.72 and 647,992.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191,820.42 : 1,644,744.72 = 647,992.77 : x
2. Step 2: Convert to fraction form
   1,191,820.42/1,644,744.72 = 647,992.77/x
3. Step 3: Cross multiply
   1,191,820.42x = 1,644,744.72 × 647,992.77
4. Step 4: Simplify right side
   1,191,820.42x = 1,065,782,687,055.67
5. Step 5: Solve for x
   x = 1,065,782,687,055.67/1,191,820.42
6. Step 6: Final answer
   x = 894,247.71