Finding the Fourth Proportional to 1,570,870.72, 2,356,305.36 and 448,940.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570,870.72 : 2,356,305.36 = 448,940.08 : x
2. Step 2: Convert to fraction form
   1,570,870.72/2,356,305.36 = 448,940.08/x
3. Step 3: Cross multiply
   1,570,870.72x = 2,356,305.36 × 448,940.08
4. Step 4: Simplify right side
   1,570,870.72x = 1,057,839,916,822.83
5. Step 5: Solve for x
   x = 1,057,839,916,822.83/1,570,870.72
6. Step 6: Final answer
   x = 673,409.91