Finding the Fourth Proportional to 2,142.05, 2,955.89 and 1,197.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.05 : 2,955.89 = 1,197.81 : x
2. Step 2: Convert to fraction form
   2,142.05/2,955.89 = 1,197.81/x
3. Step 3: Cross multiply
   2,142.05x = 2,955.89 × 1,197.81
4. Step 4: Simplify right side
   2,142.05x = 3,540,605.91
5. Step 5: Solve for x
   x = 3,540,605.91/2,142.05
6. Step 6: Final answer
   x = 1,652.91