Finding the Fourth Proportional to 684,665.99, 944,520.73 and 443,026.59

Step by Step Solution

1. Step 1: Write the proportion equation
   684,665.99 : 944,520.73 = 443,026.59 : x
2. Step 2: Convert to fraction form
   684,665.99/944,520.73 = 443,026.59/x
3. Step 3: Cross multiply
   684,665.99x = 944,520.73 × 443,026.59
4. Step 4: Simplify right side
   684,665.99x = 418,447,797,088.64
5. Step 5: Solve for x
   x = 418,447,797,088.64/684,665.99
6. Step 6: Final answer
   x = 611,170.70