Finding the Fourth Proportional to 1,004,569.31, 1,507,061.56 and 330,691.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004,569.31 : 1,507,061.56 = 330,691.05 : x
2. Step 2: Convert to fraction form
   1,004,569.31/1,507,061.56 = 330,691.05/x
3. Step 3: Cross multiply
   1,004,569.31x = 1,507,061.56 × 330,691.05
4. Step 4: Simplify right side
   1,004,569.31x = 498,371,774,285.42
5. Step 5: Solve for x
   x = 498,371,774,285.42/1,004,569.31
6. Step 6: Final answer
   x = 496,104.92