Finding the Fourth Proportional to 2,696.59, 3,721.76 and 1,992.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,696.59 : 3,721.76 = 1,992.10 : x
2. Step 2: Convert to fraction form
   2,696.59/3,721.76 = 1,992.10/x
3. Step 3: Cross multiply
   2,696.59x = 3,721.76 × 1,992.10
4. Step 4: Simplify right side
   2,696.59x = 7,414,118.10
5. Step 5: Solve for x
   x = 7,414,118.10/2,696.59
6. Step 6: Final answer
   x = 2,749.44