Finding the Fourth Proportional to 490,061.48, 676,357.98 and 299,185.52

Step by Step Solution

1. Step 1: Write the proportion equation
   490,061.48 : 676,357.98 = 299,185.52 : x
2. Step 2: Convert to fraction form
   490,061.48/676,357.98 = 299,185.52/x
3. Step 3: Cross multiply
   490,061.48x = 676,357.98 × 299,185.52
4. Step 4: Simplify right side
   490,061.48x = 202,356,513,952.45
5. Step 5: Solve for x
   x = 202,356,513,952.45/490,061.48
6. Step 6: Final answer
   x = 412,920.67