Finding the Fourth Proportional to 3,977.56, 5,965.89 and 1,056.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,977.56 : 5,965.89 = 1,056.10 : x
2. Step 2: Convert to fraction form
   3,977.56/5,965.89 = 1,056.10/x
3. Step 3: Cross multiply
   3,977.56x = 5,965.89 × 1,056.10
4. Step 4: Simplify right side
   3,977.56x = 6,300,576.43
5. Step 5: Solve for x
   x = 6,300,576.43/3,977.56
6. Step 6: Final answer
   x = 1,584.03