Finding the Fourth Proportional to 6,111.45, 9,169.20 and 1,952.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.45 : 9,169.20 = 1,952.10 : x
2. Step 2: Convert to fraction form
   6,111.45/9,169.20 = 1,952.10/x
3. Step 3: Cross multiply
   6,111.45x = 9,169.20 × 1,952.10
4. Step 4: Simplify right side
   6,111.45x = 17,899,195.32
5. Step 5: Solve for x
   x = 17,899,195.32/6,111.45
6. Step 6: Final answer
   x = 2,928.80