Finding the Fourth Proportional to 1,990,840.50, 2,986,271.69 and 494,932.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990,840.50 : 2,986,271.69 = 494,932.50 : x
2. Step 2: Convert to fraction form
   1,990,840.50/2,986,271.69 = 494,932.50/x
3. Step 3: Cross multiply
   1,990,840.50x = 2,986,271.69 × 494,932.50
4. Step 4: Simplify right side
   1,990,840.50x = 1,478,002,910,736.26
5. Step 5: Solve for x
   x = 1,478,002,910,736.26/1,990,840.50
6. Step 6: Final answer
   x = 742,401.47