Finding the Fourth Proportional to 3,674.84, 5,513.32 and 1,077.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,674.84 : 5,513.32 = 1,077.78 : x
2. Step 2: Convert to fraction form
   3,674.84/5,513.32 = 1,077.78/x
3. Step 3: Cross multiply
   3,674.84x = 5,513.32 × 1,077.78
4. Step 4: Simplify right side
   3,674.84x = 5,942,146.03
5. Step 5: Solve for x
   x = 5,942,146.03/3,674.84
6. Step 6: Final answer
   x = 1,616.98