Finding the Fourth Proportional to 2,109.45, 2,911.01 and 1,270.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.45 : 2,911.01 = 1,270.16 : x
2. Step 2: Convert to fraction form
   2,109.45/2,911.01 = 1,270.16/x
3. Step 3: Cross multiply
   2,109.45x = 2,911.01 × 1,270.16
4. Step 4: Simplify right side
   2,109.45x = 3,697,438.47
5. Step 5: Solve for x
   x = 3,697,438.47/2,109.45
6. Step 6: Final answer
   x = 1,752.79