Finding the Fourth Proportional to 1,119.53, 1,544.83 and 647.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,119.53 : 1,544.83 = 647.35 : x
2. Step 2: Convert to fraction form
   1,119.53/1,544.83 = 647.35/x
3. Step 3: Cross multiply
   1,119.53x = 1,544.83 × 647.35
4. Step 4: Simplify right side
   1,119.53x = 1,000,046.25
5. Step 5: Solve for x
   x = 1,000,046.25/1,119.53
6. Step 6: Final answer
   x = 893.28