Finding the Fourth Proportional to 1,028.63, 1,419.72 and 655.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,028.63 : 1,419.72 = 655.52 : x
2. Step 2: Convert to fraction form
   1,028.63/1,419.72 = 655.52/x
3. Step 3: Cross multiply
   1,028.63x = 1,419.72 × 655.52
4. Step 4: Simplify right side
   1,028.63x = 930,647.76
5. Step 5: Solve for x
   x = 930,647.76/1,028.63
6. Step 6: Final answer
   x = 904.75