Finding the Fourth Proportional to 1,105,742.81, 1,525,974.18 and 622,339.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105,742.81 : 1,525,974.18 = 622,339.27 : x
2. Step 2: Convert to fraction form
   1,105,742.81/1,525,974.18 = 622,339.27/x
3. Step 3: Cross multiply
   1,105,742.81x = 1,525,974.18 × 622,339.27
4. Step 4: Simplify right side
   1,105,742.81x = 949,673,649,590.18
5. Step 5: Solve for x
   x = 949,673,649,590.18/1,105,742.81
6. Step 6: Final answer
   x = 858,855.82