Finding the Fourth Proportional to 3,977.55, 5,964.71 and 1,785.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,977.55 : 5,964.71 = 1,785.69 : x
2. Step 2: Convert to fraction form
   3,977.55/5,964.71 = 1,785.69/x
3. Step 3: Cross multiply
   3,977.55x = 5,964.71 × 1,785.69
4. Step 4: Simplify right side
   3,977.55x = 10,651,114.07
5. Step 5: Solve for x
   x = 10,651,114.07/3,977.55
6. Step 6: Final answer
   x = 2,677.81