Finding the Fourth Proportional to 1,469.55, 2,205.54 and 648.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,469.55 : 2,205.54 = 648.42 : x
2. Step 2: Convert to fraction form
   1,469.55/2,205.54 = 648.42/x
3. Step 3: Cross multiply
   1,469.55x = 2,205.54 × 648.42
4. Step 4: Simplify right side
   1,469.55x = 1,430,116.25
5. Step 5: Solve for x
   x = 1,430,116.25/1,469.55
6. Step 6: Final answer
   x = 973.17