Finding the Fourth Proportional to 745,404.33, 1,028,674.86 and 423,084.27

Step by Step Solution

1. Step 1: Write the proportion equation
   745,404.33 : 1,028,674.86 = 423,084.27 : x
2. Step 2: Convert to fraction form
   745,404.33/1,028,674.86 = 423,084.27/x
3. Step 3: Cross multiply
   745,404.33x = 1,028,674.86 × 423,084.27
4. Step 4: Simplify right side
   745,404.33x = 435,216,152,210.45
5. Step 5: Solve for x
   x = 435,216,152,210.45/745,404.33
6. Step 6: Final answer
   x = 583,865.88