Finding the Fourth Proportional to 743,111.35, 1,025,499.68 and 403,582.03

Step by Step Solution

1. Step 1: Write the proportion equation
   743,111.35 : 1,025,499.68 = 403,582.03 : x
2. Step 2: Convert to fraction form
   743,111.35/1,025,499.68 = 403,582.03/x
3. Step 3: Cross multiply
   743,111.35x = 1,025,499.68 × 403,582.03
4. Step 4: Simplify right side
   743,111.35x = 413,873,242,618.75
5. Step 5: Solve for x
   x = 413,873,242,618.75/743,111.35
6. Step 6: Final answer
   x = 556,946.47