Finding the Fourth Proportional to 1,172,789.36, 1,759,028.52 and 331,406.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,172,789.36 : 1,759,028.52 = 331,406.72 : x
2. Step 2: Convert to fraction form
   1,172,789.36/1,759,028.52 = 331,406.72/x
3. Step 3: Cross multiply
   1,172,789.36x = 1,759,028.52 × 331,406.72
4. Step 4: Simplify right side
   1,172,789.36x = 582,953,872,199.65
5. Step 5: Solve for x
   x = 582,953,872,199.65/1,172,789.36
6. Step 6: Final answer
   x = 497,066.13