Finding the Fourth Proportional to 743,196.56, 1,025,616.66 and 403,664.92

Step by Step Solution

1. Step 1: Write the proportion equation
   743,196.56 : 1,025,616.66 = 403,664.92 : x
2. Step 2: Convert to fraction form
   743,196.56/1,025,616.66 = 403,664.92/x
3. Step 3: Cross multiply
   743,196.56x = 1,025,616.66 × 403,664.92
4. Step 4: Simplify right side
   743,196.56x = 414,005,467,009.57
5. Step 5: Solve for x
   x = 414,005,467,009.57/743,196.56
6. Step 6: Final answer
   x = 557,060.53