Finding the Fourth Proportional to 1,607,216.10, 2,410,824.15 and 485,139.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,607,216.10 : 2,410,824.15 = 485,139.30 : x
2. Step 2: Convert to fraction form
   1,607,216.10/2,410,824.15 = 485,139.30/x
3. Step 3: Cross multiply
   1,607,216.10x = 2,410,824.15 × 485,139.30
4. Step 4: Simplify right side
   1,607,216.10x = 1,169,585,540,554.10
5. Step 5: Solve for x
   x = 1,169,585,540,554.10/1,607,216.10
6. Step 6: Final answer
   x = 727,708.95