Finding the Fourth Proportional to 1,488.49, 2,054.12 and 825.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.49 : 2,054.12 = 825.37 : x
2. Step 2: Convert to fraction form
   1,488.49/2,054.12 = 825.37/x
3. Step 3: Cross multiply
   1,488.49x = 2,054.12 × 825.37
4. Step 4: Simplify right side
   1,488.49x = 1,695,409.02
5. Step 5: Solve for x
   x = 1,695,409.02/1,488.49
6. Step 6: Final answer
   x = 1,139.01