Finding the Fourth Proportional to 2,131.27, 2,941.17 and 1,199.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.27 : 2,941.17 = 1,199.77 : x
2. Step 2: Convert to fraction form
   2,131.27/2,941.17 = 1,199.77/x
3. Step 3: Cross multiply
   2,131.27x = 2,941.17 × 1,199.77
4. Step 4: Simplify right side
   2,131.27x = 3,528,727.53
5. Step 5: Solve for x
   x = 3,528,727.53/2,131.27
6. Step 6: Final answer
   x = 1,655.69