Finding the Fourth Proportional to 2,158.06, 2,977.16 and 1,273.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158.06 : 2,977.16 = 1,273.48 : x
2. Step 2: Convert to fraction form
   2,158.06/2,977.16 = 1,273.48/x
3. Step 3: Cross multiply
   2,158.06x = 2,977.16 × 1,273.48
4. Step 4: Simplify right side
   2,158.06x = 3,791,353.72
5. Step 5: Solve for x
   x = 3,791,353.72/2,158.06
6. Step 6: Final answer
   x = 1,756.83