Finding the Fourth Proportional to 2,131.42, 3,199.11 and 1,092.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.42 : 3,199.11 = 1,092.17 : x
2. Step 2: Convert to fraction form
   2,131.42/3,199.11 = 1,092.17/x
3. Step 3: Cross multiply
   2,131.42x = 3,199.11 × 1,092.17
4. Step 4: Simplify right side
   2,131.42x = 3,493,955.97
5. Step 5: Solve for x
   x = 3,493,955.97/2,131.42
6. Step 6: Final answer
   x = 1,639.26