Finding the Fourth Proportional to 2,191.78, 3,024.56 and 1,197.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.78 : 3,024.56 = 1,197.04 : x
2. Step 2: Convert to fraction form
   2,191.78/3,024.56 = 1,197.04/x
3. Step 3: Cross multiply
   2,191.78x = 3,024.56 × 1,197.04
4. Step 4: Simplify right side
   2,191.78x = 3,620,519.30
5. Step 5: Solve for x
   x = 3,620,519.30/2,191.78
6. Step 6: Final answer
   x = 1,651.86