Finding the Fourth Proportional to 3,679,978.64, 5,520,567.57 and 1,086,545.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,679,978.64 : 5,520,567.57 = 1,086,545.57 : x
2. Step 2: Convert to fraction form
   3,679,978.64/5,520,567.57 = 1,086,545.57/x
3. Step 3: Cross multiply
   3,679,978.64x = 5,520,567.57 × 1,086,545.57
4. Step 4: Simplify right side
   3,679,978.64x = 5,998,348,209,466.33
5. Step 5: Solve for x
   x = 5,998,348,209,466.33/3,679,978.64
6. Step 6: Final answer
   x = 1,629,995.39