Finding the Fourth Proportional to 1,017,803.89, 1,524,380.55 and 485,698.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017,803.89 : 1,524,380.55 = 485,698.60 : x
2. Step 2: Convert to fraction form
   1,017,803.89/1,524,380.55 = 485,698.60/x
3. Step 3: Cross multiply
   1,017,803.89x = 1,524,380.55 × 485,698.60
4. Step 4: Simplify right side
   1,017,803.89x = 740,389,499,002.23
5. Step 5: Solve for x
   x = 740,389,499,002.23/1,017,803.89
6. Step 6: Final answer
   x = 727,438.27