Finding the Fourth Proportional to 749,443.78, 1,034,256.90 and 409,912.03

Step by Step Solution

1. Step 1: Write the proportion equation
   749,443.78 : 1,034,256.90 = 409,912.03 : x
2. Step 2: Convert to fraction form
   749,443.78/1,034,256.90 = 409,912.03/x
3. Step 3: Cross multiply
   749,443.78x = 1,034,256.90 × 409,912.03
4. Step 4: Simplify right side
   749,443.78x = 423,954,345,420.51
5. Step 5: Solve for x
   x = 423,954,345,420.51/749,443.78
6. Step 6: Final answer
   x = 565,691.99