Finding the Fourth Proportional to 1,918.55, 2,648.04 and 1,122.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918.55 : 2,648.04 = 1,122.24 : x
2. Step 2: Convert to fraction form
   1,918.55/2,648.04 = 1,122.24/x
3. Step 3: Cross multiply
   1,918.55x = 2,648.04 × 1,122.24
4. Step 4: Simplify right side
   1,918.55x = 2,971,730.80
5. Step 5: Solve for x
   x = 2,971,730.80/1,918.55
6. Step 6: Final answer
   x = 1,548.95