Finding the Fourth Proportional to 2,144.13, 2,958.76 and 1,199.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.13 : 2,958.76 = 1,199.76 : x
2. Step 2: Convert to fraction form
   2,144.13/2,958.76 = 1,199.76/x
3. Step 3: Cross multiply
   2,144.13x = 2,958.76 × 1,199.76
4. Step 4: Simplify right side
   2,144.13x = 3,549,791.50
5. Step 5: Solve for x
   x = 3,549,791.50/2,144.13
6. Step 6: Final answer
   x = 1,655.58