Finding the Fourth Proportional to 1,040,410.10, 1,560,615.15 and 978,202.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040,410.10 : 1,560,615.15 = 978,202.10 : x
2. Step 2: Convert to fraction form
   1,040,410.10/1,560,615.15 = 978,202.10/x
3. Step 3: Cross multiply
   1,040,410.10x = 1,560,615.15 × 978,202.10
4. Step 4: Simplify right side
   1,040,410.10x = 1,526,597,017,021.82
5. Step 5: Solve for x
   x = 1,526,597,017,021.82/1,040,410.10
6. Step 6: Final answer
   x = 1,467,303.15