Finding the Fourth Proportional to 745,758.63, 1,029,111.48 and 423,426.42

Step by Step Solution

1. Step 1: Write the proportion equation
   745,758.63 : 1,029,111.48 = 423,426.42 : x
2. Step 2: Convert to fraction form
   745,758.63/1,029,111.48 = 423,426.42/x
3. Step 3: Cross multiply
   745,758.63x = 1,029,111.48 × 423,426.42
4. Step 4: Simplify right side
   745,758.63x = 435,752,989,757.30
5. Step 5: Solve for x
   x = 435,752,989,757.30/745,758.63
6. Step 6: Final answer
   x = 584,308.34