Finding the Fourth Proportional to 1,119.38, 1,544.82 and 647.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,119.38 : 1,544.82 = 647.37 : x
2. Step 2: Convert to fraction form
   1,119.38/1,544.82 = 647.37/x
3. Step 3: Cross multiply
   1,119.38x = 1,544.82 × 647.37
4. Step 4: Simplify right side
   1,119.38x = 1,000,070.12
5. Step 5: Solve for x
   x = 1,000,070.12/1,119.38
6. Step 6: Final answer
   x = 893.41