Finding the Fourth Proportional to 1,008,111.04, 1,391,394.72 and 578,681.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008,111.04 : 1,391,394.72 = 578,681.44 : x
2. Step 2: Convert to fraction form
   1,008,111.04/1,391,394.72 = 578,681.44/x
3. Step 3: Cross multiply
   1,008,111.04x = 1,391,394.72 × 578,681.44
4. Step 4: Simplify right side
   1,008,111.04x = 805,174,300,178.00
5. Step 5: Solve for x
   x = 805,174,300,178.00/1,008,111.04
6. Step 6: Final answer
   x = 798,696.04