Finding the Fourth Proportional to 607,308, 838,085.10 and 339,036

Step by Step Solution

1. Step 1: Write the proportion equation
   607,308 : 838,085.10 = 339,036 : x
2. Step 2: Convert to fraction form
   607,308/838,085.10 = 339,036/x
3. Step 3: Cross multiply
   607,308x = 838,085.10 × 339,036
4. Step 4: Simplify right side
   607,308x = 284,141,019,963.60
5. Step 5: Solve for x
   x = 284,141,019,963.60/607,308
6. Step 6: Final answer
   x = 467,869.71