Finding the Fourth Proportional to 2,485,300.12, 3,728,675.94 and 989,612.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485,300.12 : 3,728,675.94 = 989,612.44 : x
2. Step 2: Convert to fraction form
   2,485,300.12/3,728,675.94 = 989,612.44/x
3. Step 3: Cross multiply
   2,485,300.12x = 3,728,675.94 × 989,612.44
4. Step 4: Simplify right side
   2,485,300.12x = 3,689,944,094,952.69
5. Step 5: Solve for x
   x = 3,689,944,094,952.69/2,485,300.12
6. Step 6: Final answer
   x = 1,484,707.65