Finding the Fourth Proportional to 606,665.48, 909,993.72 and 473,657

Step by Step Solution

1. Step 1: Write the proportion equation
   606,665.48 : 909,993.72 = 473,657 : x
2. Step 2: Convert to fraction form
   606,665.48/909,993.72 = 473,657/x
3. Step 3: Cross multiply
   606,665.48x = 909,993.72 × 473,657
4. Step 4: Simplify right side
   606,665.48x = 431,024,895,434.04
5. Step 5: Solve for x
   x = 431,024,895,434.04/606,665.48
6. Step 6: Final answer
   x = 710,481.99