Finding the Fourth Proportional to 2,131.96, 2,941.07 and 1,836.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.96 : 2,941.07 = 1,836.72 : x
2. Step 2: Convert to fraction form
   2,131.96/2,941.07 = 1,836.72/x
3. Step 3: Cross multiply
   2,131.96x = 2,941.07 × 1,836.72
4. Step 4: Simplify right side
   2,131.96x = 5,401,922.09
5. Step 5: Solve for x
   x = 5,401,922.09/2,131.96
6. Step 6: Final answer
   x = 2,533.78