Finding the Fourth Proportional to 3,656.75, 5,046.33 and 1,978.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,656.75 : 5,046.33 = 1,978.17 : x
2. Step 2: Convert to fraction form
   3,656.75/5,046.33 = 1,978.17/x
3. Step 3: Cross multiply
   3,656.75x = 5,046.33 × 1,978.17
4. Step 4: Simplify right side
   3,656.75x = 9,982,488.73
5. Step 5: Solve for x
   x = 9,982,488.73/3,656.75
6. Step 6: Final answer
   x = 2,729.88