Finding the Fourth Proportional to 990,805.05, 1,485,168.62 and 484,667.37

Step by Step Solution

1. Step 1: Write the proportion equation
   990,805.05 : 1,485,168.62 = 484,667.37 : x
2. Step 2: Convert to fraction form
   990,805.05/1,485,168.62 = 484,667.37/x
3. Step 3: Cross multiply
   990,805.05x = 1,485,168.62 × 484,667.37
4. Step 4: Simplify right side
   990,805.05x = 719,812,766,638.59
5. Step 5: Solve for x
   x = 719,812,766,638.59/990,805.05
6. Step 6: Final answer
   x = 726,492.83