Finding the Fourth Proportional to 1,123,853.67, 1,686,205.22 and 674,887.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,853.67 : 1,686,205.22 = 674,887.55 : x
2. Step 2: Convert to fraction form
   1,123,853.67/1,686,205.22 = 674,887.55/x
3. Step 3: Cross multiply
   1,123,853.67x = 1,686,205.22 × 674,887.55
4. Step 4: Simplify right side
   1,123,853.67x = 1,137,998,897,917.55
5. Step 5: Solve for x
   x = 1,137,998,897,917.55/1,123,853.67
6. Step 6: Final answer
   x = 1,012,586.36