Finding the Fourth Proportional to 1,321,100.02, 1,823,107.75 and 717,488.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,321,100.02 : 1,823,107.75 = 717,488.02 : x
2. Step 2: Convert to fraction form
   1,321,100.02/1,823,107.75 = 717,488.02/x
3. Step 3: Cross multiply
   1,321,100.02x = 1,823,107.75 × 717,488.02
4. Step 4: Simplify right side
   1,321,100.02x = 1,308,057,957,091.18
5. Step 5: Solve for x
   x = 1,308,057,957,091.18/1,321,100.02
6. Step 6: Final answer
   x = 990,127.88