Finding the Fourth Proportional to 1,144.99, 1,720.52 and 625.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.99 : 1,720.52 = 625.37 : x
2. Step 2: Convert to fraction form
   1,144.99/1,720.52 = 625.37/x
3. Step 3: Cross multiply
   1,144.99x = 1,720.52 × 625.37
4. Step 4: Simplify right side
   1,144.99x = 1,075,961.59
5. Step 5: Solve for x
   x = 1,075,961.59/1,144.99
6. Step 6: Final answer
   x = 939.71