Finding the Fourth Proportional to 2,109.25, 2,911.20 and 1,401.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.25 : 2,911.20 = 1,401.13 : x
2. Step 2: Convert to fraction form
   2,109.25/2,911.20 = 1,401.13/x
3. Step 3: Cross multiply
   2,109.25x = 2,911.20 × 1,401.13
4. Step 4: Simplify right side
   2,109.25x = 4,078,969.66
5. Step 5: Solve for x
   x = 4,078,969.66/2,109.25
6. Step 6: Final answer
   x = 1,933.85