Finding the Fourth Proportional to 607,456.35, 838,298.61 and 352,807.53

Step by Step Solution

1. Step 1: Write the proportion equation
   607,456.35 : 838,298.61 = 352,807.53 : x
2. Step 2: Convert to fraction form
   607,456.35/838,298.61 = 352,807.53/x
3. Step 3: Cross multiply
   607,456.35x = 838,298.61 × 352,807.53
4. Step 4: Simplify right side
   607,456.35x = 295,758,061,996.53
5. Step 5: Solve for x
   x = 295,758,061,996.53/607,456.35
6. Step 6: Final answer
   x = 486,879.53