Finding the Fourth Proportional to 2,576,293.11, 3,864,436.43 and 978,474.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576,293.11 : 3,864,436.43 = 978,474.15 : x
2. Step 2: Convert to fraction form
   2,576,293.11/3,864,436.43 = 978,474.15/x
3. Step 3: Cross multiply
   2,576,293.11x = 3,864,436.43 × 978,474.15
4. Step 4: Simplify right side
   2,576,293.11x = 3,781,251,146,180.91
5. Step 5: Solve for x
   x = 3,781,251,146,180.91/2,576,293.11
6. Step 6: Final answer
   x = 1,467,709.99