Finding the Fourth Proportional to 680,632.47, 1,020,710.72 and 200,732.99

Step by Step Solution

1. Step 1: Write the proportion equation
   680,632.47 : 1,020,710.72 = 200,732.99 : x
2. Step 2: Convert to fraction form
   680,632.47/1,020,710.72 = 200,732.99/x
3. Step 3: Cross multiply
   680,632.47x = 1,020,710.72 × 200,732.99
4. Step 4: Simplify right side
   680,632.47x = 204,890,309,019.81
5. Step 5: Solve for x
   x = 204,890,309,019.81/680,632.47
6. Step 6: Final answer
   x = 301,029.29