Finding the Fourth Proportional to 3,969.42, 5,953.89 and 1,777.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.42 : 5,953.89 = 1,777.56 : x
2. Step 2: Convert to fraction form
   3,969.42/5,953.89 = 1,777.56/x
3. Step 3: Cross multiply
   3,969.42x = 5,953.89 × 1,777.56
4. Step 4: Simplify right side
   3,969.42x = 10,583,396.71
5. Step 5: Solve for x
   x = 10,583,396.71/3,969.42
6. Step 6: Final answer
   x = 2,666.23