Finding the Fourth Proportional to 1,488.86, 2,052.67 and 1,281.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.86 : 2,052.67 = 1,281.26 : x
2. Step 2: Convert to fraction form
   1,488.86/2,052.67 = 1,281.26/x
3. Step 3: Cross multiply
   1,488.86x = 2,052.67 × 1,281.26
4. Step 4: Simplify right side
   1,488.86x = 2,630,003.96
5. Step 5: Solve for x
   x = 2,630,003.96/1,488.86
6. Step 6: Final answer
   x = 1,766.46