Finding the Fourth Proportional to 1,139,103.44, 1,571,943.24 and 813,016.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,103.44 : 1,571,943.24 = 813,016.88 : x
2. Step 2: Convert to fraction form
   1,139,103.44/1,571,943.24 = 813,016.88/x
3. Step 3: Cross multiply
   1,139,103.44x = 1,571,943.24 × 813,016.88
4. Step 4: Simplify right side
   1,139,103.44x = 1,278,016,388,521.89
5. Step 5: Solve for x
   x = 1,278,016,388,521.89/1,139,103.44
6. Step 6: Final answer
   x = 1,121,949.37