Finding the Fourth Proportional to 2,197.02, 3,294.72 and 1,223.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,197.02 : 3,294.72 = 1,223.40 : x
2. Step 2: Convert to fraction form
   2,197.02/3,294.72 = 1,223.40/x
3. Step 3: Cross multiply
   2,197.02x = 3,294.72 × 1,223.40
4. Step 4: Simplify right side
   2,197.02x = 4,030,760.45
5. Step 5: Solve for x
   x = 4,030,760.45/2,197.02
6. Step 6: Final answer
   x = 1,834.65