Finding the Fourth Proportional to 1,185,409.25, 1,635,890.69 and 648,865.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185,409.25 : 1,635,890.69 = 648,865.25 : x
2. Step 2: Convert to fraction form
   1,185,409.25/1,635,890.69 = 648,865.25/x
3. Step 3: Cross multiply
   1,185,409.25x = 1,635,890.69 × 648,865.25
4. Step 4: Simplify right side
   1,185,409.25x = 1,061,472,618,295.20
5. Step 5: Solve for x
   x = 1,061,472,618,295.20/1,185,409.25
6. Step 6: Final answer
   x = 895,448.23