Finding the Fourth Proportional to 1,018,131.90, 1,527,530.00 and 485,583.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,131.90 : 1,527,530.00 = 485,583.72 : x
2. Step 2: Convert to fraction form
   1,018,131.90/1,527,530.00 = 485,583.72/x
3. Step 3: Cross multiply
   1,018,131.90x = 1,527,530.00 × 485,583.72
4. Step 4: Simplify right side
   1,018,131.90x = 741,743,697,383.68
5. Step 5: Solve for x
   x = 741,743,697,383.68/1,018,131.90
6. Step 6: Final answer
   x = 728,533.99