Finding the Fourth Proportional to 2,661.62, 3,991.89 and 1,492.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.62 : 3,991.89 = 1,492.79 : x
2. Step 2: Convert to fraction form
   2,661.62/3,991.89 = 1,492.79/x
3. Step 3: Cross multiply
   2,661.62x = 3,991.89 × 1,492.79
4. Step 4: Simplify right side
   2,661.62x = 5,959,053.47
5. Step 5: Solve for x
   x = 5,959,053.47/2,661.62
6. Step 6: Final answer
   x = 2,238.88