Finding the Fourth Proportional to 921,498.51, 1,382,870.55 and 322,464.87

Step by Step Solution

1. Step 1: Write the proportion equation
   921,498.51 : 1,382,870.55 = 322,464.87 : x
2. Step 2: Convert to fraction form
   921,498.51/1,382,870.55 = 322,464.87/x
3. Step 3: Cross multiply
   921,498.51x = 1,382,870.55 × 322,464.87
4. Step 4: Simplify right side
   921,498.51x = 445,927,172,132.58
5. Step 5: Solve for x
   x = 445,927,172,132.58/921,498.51
6. Step 6: Final answer
   x = 483,915.24