Finding the Fourth Proportional to 2,155.96, 2,975.16 and 1,271.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.96 : 2,975.16 = 1,271.62 : x
2. Step 2: Convert to fraction form
   2,155.96/2,975.16 = 1,271.62/x
3. Step 3: Cross multiply
   2,155.96x = 2,975.16 × 1,271.62
4. Step 4: Simplify right side
   2,155.96x = 3,783,272.96
5. Step 5: Solve for x
   x = 3,783,272.96/2,155.96
6. Step 6: Final answer
   x = 1,754.80