Finding the Fourth Proportional to 1,012,109.87, 1,518,586.61 and 443,898.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,109.87 : 1,518,586.61 = 443,898.81 : x
2. Step 2: Convert to fraction form
   1,012,109.87/1,518,586.61 = 443,898.81/x
3. Step 3: Cross multiply
   1,012,109.87x = 1,518,586.61 × 443,898.81
4. Step 4: Simplify right side
   1,012,109.87x = 674,098,786,841.44
5. Step 5: Solve for x
   x = 674,098,786,841.44/1,012,109.87
6. Step 6: Final answer
   x = 666,033.21