Finding the Fourth Proportional to 1,645,870.32, 2,468,556.36 and 447,886.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,645,870.32 : 2,468,556.36 = 447,886.06 : x
2. Step 2: Convert to fraction form
   1,645,870.32/2,468,556.36 = 447,886.06/x
3. Step 3: Cross multiply
   1,645,870.32x = 2,468,556.36 × 447,886.06
4. Step 4: Simplify right side
   1,645,870.32x = 1,105,631,981,968.34
5. Step 5: Solve for x
   x = 1,105,631,981,968.34/1,645,870.32
6. Step 6: Final answer
   x = 671,761.30