Finding the Fourth Proportional to 1,144,269.25, 1,579,111.61 and 628,071.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144,269.25 : 1,579,111.61 = 628,071.44 : x
2. Step 2: Convert to fraction form
   1,144,269.25/1,579,111.61 = 628,071.44/x
3. Step 3: Cross multiply
   1,144,269.25x = 1,579,111.61 × 628,071.44
4. Step 4: Simplify right side
   1,144,269.25x = 991,794,891,777.50
5. Step 5: Solve for x
   x = 991,794,891,777.50/1,144,269.25
6. Step 6: Final answer
   x = 866,749.58