Finding the Fourth Proportional to 2,131.08, 2,940.82 and 1,199.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.08 : 2,940.82 = 1,199.56 : x
2. Step 2: Convert to fraction form
   2,131.08/2,940.82 = 1,199.56/x
3. Step 3: Cross multiply
   2,131.08x = 2,940.82 × 1,199.56
4. Step 4: Simplify right side
   2,131.08x = 3,527,690.04
5. Step 5: Solve for x
   x = 3,527,690.04/2,131.08
6. Step 6: Final answer
   x = 1,655.35