Finding the Fourth Proportional to 745,082.82, 1,028,185.72 and 422,773.70

Step by Step Solution

1. Step 1: Write the proportion equation
   745,082.82 : 1,028,185.72 = 422,773.70 : x
2. Step 2: Convert to fraction form
   745,082.82/1,028,185.72 = 422,773.70/x
3. Step 3: Cross multiply
   745,082.82x = 1,028,185.72 × 422,773.70
4. Step 4: Simplify right side
   745,082.82x = 434,689,874,933.70
5. Step 5: Solve for x
   x = 434,689,874,933.70/745,082.82
6. Step 6: Final answer
   x = 583,411.49