Finding the Fourth Proportional to 1,443,925.36, 1,991,991.34 and 870,647.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443,925.36 : 1,991,991.34 = 870,647.05 : x
2. Step 2: Convert to fraction form
   1,443,925.36/1,991,991.34 = 870,647.05/x
3. Step 3: Cross multiply
   1,443,925.36x = 1,991,991.34 × 870,647.05
4. Step 4: Simplify right side
   1,443,925.36x = 1,734,321,383,796.55
5. Step 5: Solve for x
   x = 1,734,321,383,796.55/1,443,925.36
6. Step 6: Final answer
   x = 1,201,115.68