Finding the Fourth Proportional to 607,307, 838,083.72 and 339,035

Step by Step Solution

1. Step 1: Write the proportion equation
   607,307 : 838,083.72 = 339,035 : x
2. Step 2: Convert to fraction form
   607,307/838,083.72 = 339,035/x
3. Step 3: Cross multiply
   607,307x = 838,083.72 × 339,035
4. Step 4: Simplify right side
   607,307x = 284,139,714,010.20
5. Step 5: Solve for x
   x = 284,139,714,010.20/607,307
6. Step 6: Final answer
   x = 467,868.33