Finding the Fourth Proportional to 1,488.83, 2,049.90 and 1,264.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.83 : 2,049.90 = 1,264.32 : x
2. Step 2: Convert to fraction form
   1,488.83/2,049.90 = 1,264.32/x
3. Step 3: Cross multiply
   1,488.83x = 2,049.90 × 1,264.32
4. Step 4: Simplify right side
   1,488.83x = 2,591,729.57
5. Step 5: Solve for x
   x = 2,591,729.57/1,488.83
6. Step 6: Final answer
   x = 1,740.78