Finding the Fourth Proportional to 745,439.91, 1,123,139.01 and 674,453.54

Step by Step Solution

1. Step 1: Write the proportion equation
   745,439.91 : 1,123,139.01 = 674,453.54 : x
2. Step 2: Convert to fraction form
   745,439.91/1,123,139.01 = 674,453.54/x
3. Step 3: Cross multiply
   745,439.91x = 1,123,139.01 × 674,453.54
4. Step 4: Simplify right side
   745,439.91x = 757,505,075,590.90
5. Step 5: Solve for x
   x = 757,505,075,590.90/745,439.91
6. Step 6: Final answer
   x = 1,016,185.30