Finding the Fourth Proportional to 1,300,279.33, 1,949,934.06 and 447,109.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300,279.33 : 1,949,934.06 = 447,109.67 : x
2. Step 2: Convert to fraction form
   1,300,279.33/1,949,934.06 = 447,109.67/x
3. Step 3: Cross multiply
   1,300,279.33x = 1,949,934.06 × 447,109.67
4. Step 4: Simplify right side
   1,300,279.33x = 871,834,378,963.20
5. Step 5: Solve for x
   x = 871,834,378,963.20/1,300,279.33
6. Step 6: Final answer
   x = 670,497.76