Finding the Fourth Proportional to 1,038,591.27, 1,557,974.39 and 328,603.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,038,591.27 : 1,557,974.39 = 328,603.59 : x
2. Step 2: Convert to fraction form
   1,038,591.27/1,557,974.39 = 328,603.59/x
3. Step 3: Cross multiply
   1,038,591.27x = 1,557,974.39 × 328,603.59
4. Step 4: Simplify right side
   1,038,591.27x = 511,955,976,039.04
5. Step 5: Solve for x
   x = 511,955,976,039.04/1,038,591.27
6. Step 6: Final answer
   x = 492,933.06