Finding the Fourth Proportional to 1,443,940.32, 1,992,011.84 and 870,662

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443,940.32 : 1,992,011.84 = 870,662 : x
2. Step 2: Convert to fraction form
   1,443,940.32/1,992,011.84 = 870,662/x
3. Step 3: Cross multiply
   1,443,940.32x = 1,992,011.84 × 870,662
4. Step 4: Simplify right side
   1,443,940.32x = 1,734,369,012,638.08
5. Step 5: Solve for x
   x = 1,734,369,012,638.08/1,443,940.32
6. Step 6: Final answer
   x = 1,201,136.22