Finding the Fourth Proportional to 2,109.61, 2,908.06 and 1,519.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.61 : 2,908.06 = 1,519.93 : x
2. Step 2: Convert to fraction form
   2,109.61/2,908.06 = 1,519.93/x
3. Step 3: Cross multiply
   2,109.61x = 2,908.06 × 1,519.93
4. Step 4: Simplify right side
   2,109.61x = 4,420,047.64
5. Step 5: Solve for x
   x = 4,420,047.64/2,109.61
6. Step 6: Final answer
   x = 2,095.20