Finding the Fourth Proportional to 607,265, 838,025.72 and 338,993

Step by Step Solution

1. Step 1: Write the proportion equation
   607,265 : 838,025.72 = 338,993 : x
2. Step 2: Convert to fraction form
   607,265/838,025.72 = 338,993/x
3. Step 3: Cross multiply
   607,265x = 838,025.72 × 338,993
4. Step 4: Simplify right side
   607,265x = 284,084,852,899.96
5. Step 5: Solve for x
   x = 284,084,852,899.96/607,265
6. Step 6: Final answer
   x = 467,810.35