Finding the Fourth Proportional to 3,978.76, 5,964.86 and 1,756.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.76 : 5,964.86 = 1,756.01 : x
2. Step 2: Convert to fraction form
   3,978.76/5,964.86 = 1,756.01/x
3. Step 3: Cross multiply
   3,978.76x = 5,964.86 × 1,756.01
4. Step 4: Simplify right side
   3,978.76x = 10,474,353.81
5. Step 5: Solve for x
   x = 10,474,353.81/3,978.76
6. Step 6: Final answer
   x = 2,632.57