Finding the Fourth Proportional to 897,105.04, 1,345,657.56 and 423,838

Step by Step Solution

1. Step 1: Write the proportion equation
   897,105.04 : 1,345,657.56 = 423,838 : x
2. Step 2: Convert to fraction form
   897,105.04/1,345,657.56 = 423,838/x
3. Step 3: Cross multiply
   897,105.04x = 1,345,657.56 × 423,838
4. Step 4: Simplify right side
   897,105.04x = 570,340,808,915.28
5. Step 5: Solve for x
   x = 570,340,808,915.28/897,105.04
6. Step 6: Final answer
   x = 635,757